Urinary problems (urinary frequency); She is getting miserable here; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 73-year-old female patient received BNT162b2 (BNT162B2), on 27Jul2022 as dose 4 (booster), single (Lot number: FP7135) at the age of 73 years, in arm for covid-19 immunisation. The patient's relevant medical history included: "Pericarditis" (unspecified if ongoing), notes: When she was in her lower 20s she had pericarditis; "Knee arthritis problems" (unspecified if ongoing), notes: Knee arthritis problems. Concomitant medication(s) included: TYLENOL taken for arthritis. Vaccination history included: BNT162b2 (Dose: 1, LOT: FA6780 with no NDC/EXP provided), administration date: 14Jul2021, when the patient was 71-year-old, for COVID-19 immunization; BNT162b2 (Dose: 2, LOT: FA7680, no NDC/EXP provided), administration date: 04Aug2021, when the patient was 72-year-old, for COVID-19 immunization; BNT162b2 (Dose: 3, LOT: F36369 which she can't hardly read it how it was written), administration date: 27Jan2022, when the patient was 72-year-old, for COVID-19 immunization, reaction(s): "She is sickly, after she got the last, but not like when she got the first one", "After the first she was a little bit for a while"; flu shot (after the first booster which she got the Flu shot at the same time), administration date: 27Jan2022, when the patient was 72-year-old, for Immunization. The following information was reported: FEELING ABNORMAL (non-serious) with onset 2022, outcome "unknown", described as "She is getting miserable here"; POLLAKIURIA (non-serious) with onset 30Aug2022, outcome "not recovered", described as "Urinary problems (urinary frequency)".  Additional information: She received the dose on 27Jul2022, 1 month after, on 30Aug2022, she started having urinary problems (urinary frequency). She wanted to know if this could be caused by the vaccine. She did not took other products. Consumer said she was concerned about a side effect she had since she took booster with Pfizer, she had the booster at the end of Jul. She wanted to know if urinary problems could be a side effect because she was concerned about something she heard on TV. She clarified it was the Pfizer COVID-19 vaccine booster. She said she first had two shots, and then the first booster, so the one she had problems after, that would have been the second booster. Her urinary problems trouble started about a month after the booster, she was not in pain or anything, she had urinary issues. She heard on TV last week for the booster there could be possible cancer or kidney stones and urinary tract infections, but she only heard part of the report. She was getting miserable here and was not sure if it could be the booster. She said she knows she was getting older, and this happened so quickly she does not know if there was some reason she was starting to have issues here. She was sickly, after she got the last, but not like when she got the first one. Caller does not clarify this statement. She said it took two weeks to get straightened out after the second booster, it was the worst, after the first she was a little bit for a while. She clarified after the first booster which she got the Flu shot at the same time, it did not affect her at all, she did not even have a sore arm. It happened after the second booster in late July, on 27Jul2022. Pfizer COVID-19 vaccine second booster adverse event It started 30Aug2022, it started while they were out and it has happened off and on ever since. She was not sickly, she doesn't have no temperature or nothing. She clarified her urinary problem was she has to urinate a lot, frequently, especially at night, so she was afraid to go anywhere. She doesn't have real pain. She was taking concomitant medications ever took was a little Tylenol for her knee arthritis problems, that has acted up for a few years, before getting the vaccines. Tylenol was the main thing she takes when she took it, she takes no prescriptions at all. No further details were provided about the Tylenol that she takes sometimes. When she was in her lower 20s she had pericarditis one time, she was a young girl and doesn't remember when, it was over forty years ago. She had never heard of it but they told her if she had it in her life time, she won't get it again.  No follow-up attempts are possible. No further information is expected