This is a spontaneous report from a contactable consumer (patient herself). A 55-year-old female patient received second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot Number: EW0168, NDC number and Expiry Date are Unknown), via an unspecified route of administration, administered in Left arm deltoid on 21May2021 around 13 to 13:30 (at the age of 55-years-old) as 2ND DOSE, SINGLE for covid-19 immunisation. Medical history included chronic sinus infections, caffeine addict. The patient previously took first dose of historical vaccine, bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot Number: EW0169, NDC number and Expiry Date are Unknown) administered in Left arm deltoid on 15Apr2021 at 11:00 or 12:00 for COVID-19 immunization and experienced, doesn't have the heart fluttering anymore, excessive sleep, feels younger after her vaccine, more frequent hot flashes than she would normally feel, hasn't had a period since her shots. On an unspecified date in 1999, at the age of 33 years, the patient received historical Vaccine, Pneumovax vaccine and she had high fever, she was really sick, she thinks the nurse put the bolus really close to the bone in her Deltoid, she had a black bruise. Caller states the reason she did have that vaccine at such a young age is because she was having chronic sinus infections and the ears, nose, and throat doctor suggested she had it and it helped quite a bit. The patient also received historical vaccine, Flu Vaccine (Onset Age: yearly) on an unspecified date and states she tends to get pretty sick from a flu vaccine, so she tends to avoid them. Caller states but she did get a flu vaccine this year and she didn't seem to have too much of a side effect. Patients medical History including any illness at time of vaccination was none. Vaccines administered on same date with the Pfizer vaccine considered as suspect were none. Family Medical History Relevant to adverse events was not provided. Concomitant medication included amoxicillin (AMOXICILLIN) taken for an unspecified indication, on an unspecified date for two weeks and she heard she can get infections in the lining of her heart or whatever, but she has sinus infections frequently and she's been on antibiotics many times, so she doesn't relate antibiotics to this getting better because she's been on antibiotics for many years. Caller states time time actually, she has a dog that's on Clindamycin, but she's on Amoxicillin, which is the typical thing they give her so it's very interesting. Caller states she will see if it lasts or will come back at some point. Caller states she is definitely correlating it with her shots. The patient did not receive any other vaccinations within four weeks prior to the first administration date of the suspect vaccine. Caller states she's not sure if her side effect is adverse. Caller states she always had, she thinks its related perhaps to menopause, she always had like a flutter of her heart that she would feel nearly everyday, every other day. Caller states she would get a little tightness and she doesn't know some kind of a syncope would happen. Caller states she never had her heart checked with the doctor. Caller states since she got her shot 15Apr2021 and her second shot was delayed, she doesn't have the fluttering anymore, isn't that interesting? Caller states her second shot was delayed because a week after the first dose, she caught a sinus infection and had to have antibiotics so she got her second shot this last Friday. Caller states she wanted to call she knows this kind of information is important. Caller states everybody wants to bash companies, like the whole thing with Accutane, she said they totally helped her. Caller states there are so many disclosures, they shouldn't have taken it if they were concerned. Caller states maybe Pfizer has discovered a solution to murmurs or whatever. Caller states she feels younger after her vaccine. It was reported that she doesn't have the heart fluttering anymore and states it was just this flutter she would get, she was very conscious of it every time it happened. Caller stated, it's been going on for a couple of years, she read something that it happens to women if their estrogen drops. Caller states her menopause came late and since she's had her shots, it hasn't happened for sure because she's just so conscious every time it happens. Caller stated, prior to the second shot is when the fluttering stooped, she would say in the first week or two after the first shot. Caller stated, she thought oh my gosh it was gone, so she felt like that before her second shot. Caller states she got her first Pfizer shot on 15Apr2021, she was supposed to get her second dose the first week of May but she was on antibiotics still so she waited a few days past her antibiotics and time and for it to be convenient so she got it last Friday so she could convalesce, her dog had a dental thing. Caller stated she's gotten hot and can't tell if its a hot flash or the vaccine. Caller states she has had more frequent hot flashes than she would normally feel and she had a headache on Sunday on 23May2021 and now its gone. Caller states but that could have also been a lack of caffeine because she is a caffeine addict. Caller states she didn't have her morning coffee until really late that day, so it could be caffeine withdrawal. Caller states she drank water and then she went out to the pet store and she got a coffee and then she felt okay within the hours. Caller confirms she has recovered completely from the headache. Caller states caffeine always helps a headache. Caller states she never gets headaches, it was really weird. Caller states her cure for a headache is caffeine. Caller states she went for 10 years without drinking coffee and she rarely gets headaches. Caller stated, she felt a little bit sick on Saturday on 22May2021. So she watched movies with her dog, but that was it. Caller stated, they are saying women are getting heavier periods, it could be a hormonal effect, she imagines it will eventually come back. Caller states she has a degree. Caller states she was working and is reading a lot of science, she read tons about this whole thing and she doesn't relate it directly to the shot, it's some effect on the hormone system, maybe its not all bad. Caller stated, she was going to tell Pfizer, the first shot, the only side effect was excessive sleep. Caller states she was sleeping 12 hours the first day, the first night. Caller she slept for 14 hours the next night, and the next night it was 12 hours, the next night was 14 hours, slept again a ridiculous amount of time, 12 or 15 hours. Caller states she got it on Friday, she's a planner, she slept so deeply and it was really great. caller confirms it began at 20:00 at night the night of her vaccine 15Apr2021. Caller states she went home and she was in bed at 20:30 and didn't get up the next day until 1130, she doesn't know if she fell asleep immediately, she thinks she slept 14 hours, it was great and she loved it. Caller stated that she didn't get that much sleep on an unspecified date in May2021 with the second vaccine, she was a little disappointed. Caller stated she doesn't really consider these adverse effects, just side effects. Caller states they don't seem too negative to her, she will see if her hormones will adjust and if her fluttering comes back. Caller stated that she hasn't had a period at all since her shot too on an unspecified date in May2021. Caller states she had gotten to where she was weaning. Caller states she had regular periods until the age of 55 and she had a bunch of candied hibiscus and its known to really suppress estrogen and she sort of put herself into menopause and so she was having less frequent periods, but since she's had her shot, she hasn't had any. Caller states she doesn't know how related that is or not. Caller states she doesn't know if its ever coming back, that will be alright though. Caller she doesn't know if the weaning of it is related to the shot or not. Caller stated thanks for getting the shot out there. Caller states there has to be some special honor for these development teams. Caller states presidents have those medals and awards they can give. Caller states the scientific teams at these science companies she thinks they basically saved the world. Caller states she doesn't know, it could wipe out the globe, it's a nasty little bugger. Caller states anyway she's writing and encouraging others to do the same. Caller states she's writing the white house and her federal representatives saying and especially these developmental scientists, one of them immigrated from an # but these are teams of people that pull this off and she thinks it would be absolutely appropriate to get to the other side of this. Caller states she thinks we have a year to go, she will not be taking her mask off. Caller states they really deserve a high honor. Caller stated that honestly she did not want to take the vaccine until 9 months had gone by to see other people's side effects but because she has a science background, she knows the more the virus spreads, the more it will mutate, so she felt it was a societal obligation. Caller states she has a friend whos an emergency room doctor and they had a talk and the doctor is basically like she's got to get it, everybody's got to get it, and the caller's like okay, she's going to get it. Caller states she just thinks that she is obligated to get it or this is gonna go on and on and she thinks this virus came out of the lab, it seems very engineered to her. Caller states it's the most dangerous virus the globe has really seen. Caller stated that she hasn't had any problems. Caller states her doctor is her age and she doesn't want to expose her or her staff unnecessarily. Caller states she hasn't tried to see her in the past year and a half unless she actually has to. Caller states she's avoiding the doctor, she loves her doctor, she doesn't want her to get sick. Caller states when she did go see her, she got a COVID test and quarantined for five days before, she doesn't want to expose her to anything, she wants to make sure she's safe, she doesn't plan to see her doctor unless it's really absolutely necessary. The time of onset (24-hour clock) of adverse Events was not provided. It was reported that adverse events did not require a visit to: Emergency Room, Physician Office. There were no Investigation assessments and relevant Tests were none. The outcome of the event, headache was recovered on 23May2021 and for other events was unknown.  Information on Lot/Batch number was available. Additional information has been requested.