low grade fevers; Severe allergic reaction; after she took the Tylenol and then the Advil, she felt drugged, like totally out of it; so tired she couldn't move; getting really winded; for the 4-5 days after receiving her Covid 19 vaccine she would wake up at that same time around 1:30AM since it started on 20Mar2021; extremely thirsty; Even going to the bathroom or getting up from the couch her heartrate would go up to the 120-130s; Her heart was doing lots of rapid jumps; Her heart was doing lots of rapid jumps; her heart was racing; SOB and Dates for getting really winded; This is a spontaneous report from a contactable consumer   A female patient of an unspecified age received the first dose of  bnt162b2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE, Lot Number: ER2613), via an unspecified route of administration on 19Mar2021 (at the age of 35-years-old) as a single dose in the left arm for COVID-19 immunization.  Medical history included mixed connective tissue disease diagnosed in 2019, autoimmune disorder and anxiety from unknown dates and unknown if ongoing. Concomitant medication included diazepam (VALIUM) taken for anxiety, start and stop date were not reported; paracetamol (TYLENOL A) taken for an unspecified indication, start and stop date were not reported; ibuprofen (ADVIL [IBUPROFEN]) taken for an unspecified indication, start and stop date were not reported. The patient experienced her heart was doing lots of rapid jumps (arrhythmia) on 20Mar2021 with outcome of not recovered  sob and dates for getting really winded (dyspnoea)  on Mar2021 with outcome of recovering, her heart was racing on 20Mar2021 with outcome of not recovered, getting really winded on 22Mar2021 with outcome of recovering, for the 4-5 days after receiving her covid 19 vaccine she would wake up at that same time around 1:30am since it started on 20mar2021 with outcome of unknown, extremely thirsty on 20Mar2021 with outcome of unknown,  low grade fevers  on an unspecified date with outcome of unknown, severe allergic reaction on an unspecified date with outcome of unknown, even going to the bathroom or getting up from the couch her heartrate would go up to the 120-130s on 20Mar2021 with outcome of not recovered.  Additional details were provided as: "I started having a reaction within 12 hours of the shot that persisted. Four (4) days after I was at urgent care and was sent to see a cardiologist due to SOB and heart rate jumps that were happening." In the past two weeks the patient has seen the cardiologist, had ekgs and echos completed and and now is being sent to see an electrophysiologist. The cardiologist wants her to postpone the second dose until she sees the electrophysiologist since he doesn't know if this is exacerbation of something or was caused by the vaccine. She had her first dose on 19Mar2021 around 12:45PM-1:00PM in the afternoon. After her vaccine she was ok. She had actually taken a Valium before she went to get the Covid 19 vaccine because she was nervous. She doesn't know if taking the Valium before getting the Covid 19 vaccine had anything to do with her delayed reaction. She does not take the Valium every day. She woke up around 1:30AM Saturday morning, 20Mar2021 and her heart was racing. Her mother is a nurse and her mother came over the next day to monitor her. Her heart was doing lots of rapid jumps. Even going to the bathroom or getting up from the couch her heartrate would go up to the 120-130s. (beats per minute) She and her mother monitored her heart for a while and she called the clinic where she received the Covid 19 vaccine and the nurse told her to go to an Urgent Care. She does report she has an autoimmune disease and she was wondering if she was having a flare up that the Covid 19 vaccine had caused. She could not find a doctor to talk to her about it. Even her primary care doctor wouldn't help her. Everyone told her to go to an Urgent Care or the emergency room. On Monday, 22Mar2021, she tried to get up and move around but she was getting really winded. She was trying to do things she normally does like walking in her backyard or walking down the hallway. On Tuesday, 23Mar2021 she went to the urgent care. The urgent care did an EKG and told her she needed to see a cardiologist. She was able to see a cardiologist the next day on Tuesday, 24Mar2021. The cardiologist had her wear a Holter monitor to monitor her heart rate for 24 hours. The results showed that she was having arrhythmias, heart rate jumps. The cardiologist did more EKG's and an echocardiogram. The cardiologist wants her to see an electrophysiologist because of what he saw on the Holter monitor. She is asking if it's possible that she had a heart issue before and the Covid 19 vaccine brought it to the surface. She's read things online where people have had similar symptoms. Is it a side effect? She would also like to report that for the 4-5 days after receiving her Covid 19 vaccine she would wake up at that same time around 1:30AM since it started on 20Mar2021. She's unsure if she should get the second Covid 19 vaccine. Her second appointment is scheduled for this Friday, 09Apr2021. When she woke up that morning of 20Mar2021 she was extremely thirsty. She reports she does not drink alcohol because of her autoimmune disease, but the thirst she experienced felt like she had been drinking alcohol and was experiencing the extreme thirst that comes with a hangover. The first 5 days after receiving the Covid 19 vaccine were the worst and that's why she decided to go to the urgent care. Her heartrate hasn't improved. Her windedness had improved by the tenth or eleventh day. She can go on a walk and jump up and down with her daughter now. The windedness is lingering a little but is definitely improved. Her autoimmune disease is called Mixed Connective Tissue. She takes no medications for it. She manages it with her diet. Her mother had called her rheumatologist on call on Monday night, 22Mar2021 and asked him is there anything the caller can do or anything she can take. The rheumatologist on call told her to take Aleve.  She didn't take Aleve but she did take Tylenol and then hours later she took Advil. She does normally run low grade fevers with her autoimmune disease. The fevers are never high, usually around 99.8F never going over 100F. The low grade fevers have been occurring prior to the Covid 19 vaccine for years. She reports that after she took the Tylenol (Tylenol Extra Strength 500mg, she took 2 tablets) and then the Advil (Advil 200mg, she took 1 tablet), she felt drugged, like totally out of it. So tired she couldn't move. And she's taken those medications before and never felt like that. The patient underwent lab tests and procedures which included electrocardiogram: arrhythmias, heart rate jumps   on 23Mar2021. No follow-up attempts are possible; no further information expected.