high blood pressure/blood pressure went to 220 after the Pfizer and it stayed 193, 185; it stayed for months/blood pressure went over the roof; This is a spontaneous report received from contactable reporter (consumer) from Medical Information team. The reporter is the patient.  A 70 year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection), administered in arm left, administration date 27Feb2021 around midday (Lot number: EN6203, Expiration Date: Jun2021) at the age of 70 years as dose 1, single for COVID-19 immunization. The vaccine was not administered at facility. The patient had no relevant medical history. There were no concomitant medications. The patient had no prior vaccinations (within 4 weeks). The patient had no family medical history relevant to the adverse event (AE). The following information was reported: HYPERTENSION (medically significant) with onset 10Mar2021, outcome "unknown," described as "high blood pressure/blood pressure went to 220 after the Pfizer and it stayed 193, 185; it stayed for months/blood pressure went over the roof." The event was evaluated at the physician office visit. The patient underwent the following laboratory tests and procedures: blood pressure: (10Mar2021) 220, 193, and 185, notes: high; (2021) 179 and 175, notes: doctor prescribed Losartan and the blood pressure was still high like 179, 175; (2021) 150, 160, and 140, notes: during the day, blood pressure was much lower it was like 150, 160, 140; (2021) 180 and 195, notes: at night if she woke up, it still could be 180, 195; blood tests: (2021) normal; colonoscopy: (10Mar2021) unknown; echocardiogram: (2021) unknown; electrocardiogram (EKG): (2021) normal; urine tests: (2021) normal. Therapeutic measures were taken as a result of hypertension, which included losartan and hydrochlorothiazide (HCTZ). The patient relayed that since having the two primary doses, she had experienced high blood pressure since Mar2021. She did not have high blood pressure prior to receiving the vaccine. She stated that the nurse should have taken her blood pressure before the shot and after to see if it went up. She had seen a cardiologist and had an EKG and an echocardiogram done. She had been placed on high blood pressure medications and 'water pills.' She stated her blood pressure would go up to 220, 198, and 183. She had read a study that the vaccine causes high blood pressure. She relayed that the doctors didn't know and that they deny the high blood pressure was related to the vaccine, but that she was sure it is. She would like Pfizer to know that this was a side effect. The patient expressed concern that she currently had to take medications to treat her blood pressure, but that they would have negative effects on her kidneys and liver over time. She stated that she did not feel bad or have any physical symptoms of the high blood pressure. The patient was asking what ingredient was causing the high blood pressure. She stated that myocarditis and pericarditis were known side effects with the vaccine and wanted to know how she would know if she had inflammation in the heart. It was relayed to the patient that elevated blood pressure was not a side effect that was reported during clinical trials and because of this, there was no data for it and was referred to speak with healthcare professional (HCP) if she was concerned for this condition or had further questions. The patient did not know if she should receive the booster dose of the vaccine or if it would just make her blood pressure higher and her doctors did not know. The patient was asking if she could have the Moderna booster dose instead. The patient was again referred to speak with HCP regarding fruther questions. It was further reported that she was due to get the booster and she had concerns, but nobody could answer her questions. She suffered from side effects, clarified that ''her blood pressure went over the roof after she had the first and second dose of the Pfizer COVID-19 vaccine. Her blood pressure went up to 220. They did not check her blood pressure during the COVID-19 vaccination, but she had an appointment for a colonoscopy on 10Mar2021, wherein they woke her up and was shaking her like she was so angry, she was told her blood pressure was 220 and then 193 and then 185. They called all the doctors and made such a big fuss and did an EKG. Her blood pressure was high at night, but she took medication in the morning during the day so its lower during the day. All the time she went through all the tests, she was asking herself why she had high blood pressure; she thought it was connected to the colonoscopy, since this was the first time she knew about her blood pressure being elevated. She knew and read research that a lot of patients that took the Pfizer COVID-19 vaccine had blood pressure increased. She was asking what ingredient in the vaccine could be causing the blood pressure increase. She was a 100% healthy person before the Pfizer COVID-19 vaccine. She read it causes myocarditis and was asking if the booster would make her blood pressure worse. The patient reported that for 5 months, she refused to take medication, she thought maybe the side effects would disappear if it was from the vaccine and she was drinking beets and celery to lower the blood pressure. She wanted to know why she had the blood pressure increased, so she went to the cardiologist and had tests. Even during the colonoscopy, the doctors rejected it, clarified the doctor stated that her increased blood pressure had nothing to do with vaccine. When she asked her primary doctor if she should take the booster, she was told according to CDC the benefit outweighed the danger. The blood pressure went through the roof was discovered during the colonoscopy on 10Mar2021. The patient further reported that she was looking online for the booster. She had two Pfizer shots. First one on 27Feb2021 and the second one on 20Mar2021 and she had terrible side effects. The doctors were saying it's not possible. The patient was trying to get the tests from the doctor's what was causing the high blood pressure and they didn't know. The EKG was normal, the blood tests were normal, the urine tests were normal, and they were saying they didn't know, but she should take medication for the high blood pressure, but she refused the medication, because she was a senior citizen and was in excellent health. The patient didn't have any problems till of the Pfizer her blood pressure went over the roof and she started to be very concerned and so she didn't take any high blood pressure medication, because she didn't want more side effects, but her blood pressure stayed in April, in May, in June, in July. Then her doctor told her that she could drop dead anytime from high blood pressure and she had to start the medication. So, she started the medication like two or three months prior reporting. The doctor prescribed losartan and the blood pressure was still high like 179, 175. So, they told her that she should take a water pill, so, that's a long name for that medication. She didn't remember the name, but it's a water pill. So she was taking those two medications and they increased losartan to two pills, so she was taking 1 in the morning, 1 in the evening, and in the middle of the day, she was taking the water pills. So, during the day, her blood pressure was much lower, it was like 150, 160, 140, but at night if she woke up, since she didn't take medication, it still could be 180, 195. The (withheld), they did research and they found the side effects of Pfizer, the heart inflammation, the muscles or in the chamber or on the outside. So, she had this concern because, she spoke to the doctor about the booster. She was afraid to take Pfizer booster, because it might increase to the problem with her heart and they said, CDC, they commented that the benefits outweighed the side effects. So, the patient didn't know if she should take the Pfizer booster and she was worried, because there were restrictions for people who didn't take the booster that like if she wanted to travel if she didn't show that she had the booster, maybe they would decline her travel. So, she wanted to report that because she didn't make it up, it had really happened to her and she was sure it happened to other people and she visited the cardiologist, who didn't know what was causing the high blood pressure. The patient wanted Pfizer to give her answers if she should take the booster, because she didn't want to have heart problems, didn't want to be paralyzed or have a heart attack.