she was hospitalized and found to have pericarditis; chest pain; 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 60 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 19Apr2021 (Lot number: EW0170) at the age of 60 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Asthma" (ongoing), notes: Diagnosed years ago. There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose : 1st, lot number is either EL330Z or EL3302. It is handwritten on the card.  NDC: unknown. , Expiry: unknown. , Given in left arm.), administration date: 22Mar2021, when the patient was 60 years old, for COVID-19 immunization. The following information was reported: PERICARDITIS (hospitalization) with onset 12Dec2021, outcome "recovered", described as "she was hospitalized and found to have pericarditis"; CHEST PAIN (hospitalization) with onset 12Dec2021, outcome "recovering", described as "chest pain". The patient was hospitalized for pericarditis (start date: 12Dec2021); for chest pain (start date: 12Jan2022). The events "she was hospitalized and found to have pericarditis" and "chest pain" were evaluated at the emergency room visit. Therapeutic measures were taken as a result of pericarditis, chest pain. Additional information: Patient received her first dose of Pfizer BioNtech covid 19 vaccine in 22Mar2021 and her second dose in 19Apr2021. Eight (8) months later, she was hospitalized and found to have pericarditis. Patient was seeking information on pericarditis after receiving the booster dose vaccine. She just has a couple of questions. She had the two first shots of Pfizer. Eight months later, she was scheduled for the third and ended up in the hospital with chest pain. They found that she had pericarditis. She just looked up out of curiosity the Covid19 shot and pericarditis. It usually happens in males a couple of weeks after the shot. Hers was 8 months after. She was in the hospital on 12Dec2021 for a day and a half and 22,000 dollars that she doesn't have. She went to the heart doctor and is feeling much better. She got medicine for that condition. She went to withheld to put in for the booster and they are asking if she got pericarditis or myocarditis and it struck her that she did get it. She asked if she still need to get the booster. Patient was looking for information about patients getting pericarditis after Covid19 shot and getting the booster. She clarified that she had two Pfizer Covid19 shots. Her second shot was in 19Apr2021 and she ended up in the hospital in 12Dec2021. Patient thinks her pericarditisis gone. She hasn't had the chest pain. She felt a little something, but it was not like it was. She didn't like the way the medicine made her felt that the doctor gave her. The heart doctor said that she could try not taking it. She cut herself back to one pill per day and so far it hasn't come back. The medication she was given for Pericarditis was basically an anti-inflammatory. It was called Hydrochlorothiazide. The dose was 12.5mg twice a day. She took it for 3 to 3.5 weeks twice a day. Then for the past 5 days she switched to one pill per day. She then stated she doesn't have insurance so she never went to the doctor. She went to the ER for chest pain and they found out she had pericarditis. Patient went to ER for chest pain and they found out she had pericarditis. Patient had no physician office visit. Prior Vaccinations (within 4 weeks) was not provided.   Follow-up attempts are completed. No further information is expected.