irregular period; she presented arrhythmia in the heart; her heart got accelerated time to time for no reason; pressure in her chest; recurrent urinary infections; was inflamed; stomach aches; heart palpitations; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 38 year-old female patient received bnt162b2 (BNT162B2), administration date 04Jun2021 (Batch/Lot number: unknown) at the age of 38 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Rhinitis" (ongoing); "Sinus infection" (ongoing); "asthma" (unspecified if ongoing), notes: her body was starting to show asthma symptoms so her doctor gave her an inhaler for asthma but she doesn't believe that has anything to do with her side effects . There were no concomitant medications. The following information was reported: ARRHYTHMIA (medically significant) with onset Jun2021, outcome "unknown", described as "she presented arrhythmia in the heart"; HEART RATE INCREASED (non-serious) with onset Jun2021, outcome "unknown", described as "her heart got accelerated time to time for no reason"; CHEST DISCOMFORT (non-serious) with onset 2021, outcome "not recovered", described as "pressure in her chest"; URINARY TRACT INFECTION (non-serious) with onset 2021, outcome "recovered" (2021), described as "recurrent urinary infections"; MENSTRUATION IRREGULAR (non-serious) with onset 27Oct2021, outcome "recovered" (Dec2021), described as "irregular period"; INFLAMMATION (non-serious) with onset 2021, outcome "recovered" (2021), described as "was inflamed"; ABDOMINAL PAIN UPPER (non-serious) with onset 2021, outcome "unknown", described as "stomach aches"; PALPITATIONS (non-serious) with onset 2021, outcome "unknown", described as "heart palpitations". The events "recurrent urinary infections" and "irregular period" were evaluated at the emergency room visit. The patient underwent the following laboratory tests and procedures: heart rate: (2021) increase; pregnancy test: (2021) negative; x-ray: (2021) she was just having abdominal pain. Therapeutic measures were taken as a result of urinary tract infection.   Clinical course: The caller indicates that last summer she received the first dose of the Pfizer COVID-19 vaccine (06Jun2021). Approximately 20 days after receiving the vaccine, she presented arrhythmia in the heart, her heart got accelerated time to time for no reason. During the appointment to obtain the second dose of the vaccine, the medical staff told her that they could not vaccinate her due to the adverse events she was having and that she had to call Pfizer to report her adverse events. She did not call Pfizer to make the report. She has not yet received the second vaccine, but she wants to receive it. That is why she is calling right now, she wants to make a report about her adverse events because she wants to receive the second dose of the vaccine. The caller had her Pfizer COVID 19 vaccine on 04Jun2021 but she had some reactions around 20 days after her 1st shot, her heartbeat got faster for no reason and she was going to go get her 2nd dose but at the center that she went to go get it they did not allow her to be vaccinated because of the side effects that she had. She was told to report this, but she never called Pfizer to do the report and now she wants to get her 2nd dose and report these side effects. She has a doctor's appointment in 2 days and wants to be able to tell her doctor that she has already reported this to Pfizer. She had started having accelerations in her heart that lasted for 4 months of last year and they began suddenly after she had the vaccine, eventually she just waited for them to go away before she went to get her 2nd dose. When she went to get the 2nd dose she mentioned everything that happened to her to the nurses that worked there and they said that they wouldn't be able to vaccinate her until she talks to Pfizer and reports this to her doctor. 5 days ago she was starting to have the accelerations as well and she spoke with her husband and she got spooked, or scared. Caller clarifies that 5 days ago she had pressure in her chest and the heart accelerations came back. Also, she wanted to provide the other things that she was going through during that time frame. She was feeling inflamed and had recurrent urinary infections in a short period of time, she had 3 in a period of time. Currently she is feeling good, she is not feeling bad, it is just that the heart accelerations came back 5 days ago and that's it, she is feeling good. Also she forgot to mention that during that first month she also had an irregular menstrual period, she thought that maybe she was pregnant but then she got her normal period. She had requested to get an appointment with a cardiologist because she wanted to be checked out by them and they gave her an appointment for 16Mar2022 and she couldn't get in sooner. Heart Accelerations and Pressure in her chest: These began right after she got the vaccine, about 20 days after she had these problems in her chest and heart. Inquired if this began in Jun2021 or Jul2021 and caller did not answer question after asked twice, not provided. They lasted about 3 to 4 months and she would tell her doctor every time she had an appointment that this was going on and that was the reason why she had not had another vaccine yet. Then these feelings began again 5 days ago. When this first happened several months went by and she was experiencing these events closer to each other but it was not often. Then every month it would happen more often but then as time went by she had no accelerations at all for some time and that is when she decided to go take the other vaccine, 2nd dose, because everyone else in her house is vaccinated and she needed to be completely vaccinated but she hasn't had the 2nd dose yet. She clarifies that when she said that she was inflamed that was due to the urinary infections, but she is good now. What is very concerning to her is her heart condition. Inquired for when the urinary infections had began and ended and she states that according to her records she went to the hospital around Aug2021 or Sep2021, but she doesn't remember the exact dates. She was prescribed antibiotics and probiotics and she got IVs. She then got better. She confirms that she stayed in the emergency room and was not admitted. She went to the emergency room because she was feeling very bad. She was having stomach aches and they did an x-ray on her and the doctor said that she was just having abdominal pain but she felt really bad and was then she was starting to have that feeling again in Nov2021 as well. She says that she has a date for this because she was in bad shape, 27Oct2021. When she had the vaccine she didn't get her period for about a month and a half and she was scared because she thought that she was pregnant. Her test was negative but she went to the doctor to run tests and she wasn't pregnant but this was due to effects of the vaccine. 2 months later she had her regular period and it is normal now. She says the date of 27Oct2021 is when she went to the emergency room for her pain at (hospital name withheld). No further details provided. She is just worried because she needs to get the COVID vaccine and every time she travels they need to document if she has it and that will always be against the law and she will have trouble when she travels. She has a doctor's appointment on 16Mar2022 and they will take a look at her heart then.   The lot number for bnt162b2 was not provided and will be requested during follow up.