High blood pressure post vaccine 175/103; blood pressure went through the roof, experiencing waves of up and down of her blood pressure; fatigued; her body started burning; fever; sniffles; flu symptoms like sniffles; This is a spontaneous report from a contactable consumer or other non hcp (patient). A 56-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE; Solution for injection), dose 1 via an unspecified route of administration, administered in Arm Left on 18May2021 09:50 (Batch/Lot Number: EW0173; Expiration Date: 31Aug2021) as FIRST DOSE, 0.3 ML SINGLE for covid-19 immunisation. Medical history included subarachnoid haemorrhage from 05Nov2018 to an unknown date, ongoing hypertension (diagnosed 3 or 4 years ago), cerebral haemorrhage from 05Nov2018 to an unknown date. Concomitant medication(s) included azilsartan kamedoxomil (EDARBI, Lot number: 73385, Expiration date: 24Mar2022, NDC number: 60631-040-30) via oral at a dose of 40mg once a day taken for blood pressure abnormal from an unspecified start date to May2021; losartan potassium (Manufacturer: Zydis Pharmas) via oral at a dose of 50mg once a day taken for blood pressure abnormal from an unspecified start date to May2021. The patient did not receive any other vaccine within 4 weeks prior to the vaccine. On 18May2021, caller states after the shot, she was sitting there, getting ready to leave, and her body started burning, she could just feel her blood pressure rising. Caller states she told the lady she's having a reaction, the lady went and got the paramedic, they took her blood pressure, her oxygen level was fine, her heart rate was fine, but her blood pressure jumped up to 175/103 and then after he took it it went right back down. Caller states she doesn't remember the second blood pressure, but it went back down after five minutes. Caller states she's been experiencing waves of her blood pressure going up and down. Caller states she felt okay, her husband came and got her, they ended up going home. The patient states a couple of times she was going to go to the hospital but she thought she didn't want to panic and then she was so fatigued and slept basically for two days and so she wanted it to be reported because when she asked everybody in the very beginning and stated she has blood pressure issues. The patient would like to know if high blood pressure has been reported as a side effect of vaccine or can someone with high blood pressure not get vaccine. Caller would also like to know if there is any contraindication for her to get second dose considering her experencing high blood pressure post vaccine. The patient would like to know how effective a single dose of vaccine. Caller states the higher her blood pressure goes, the more she's susceptible to a brain bleed or a stroke so she's very concerned about taking the second dose. Caller states she has been on blood pressure medicine for the past three years, at least close to three years and her blood pressure has been controlled and spiked in between the times when her doctor changed prescription. Caller states it was a subarachnoid hemorrhage, her frontal lobe was bleeding, but they think it was related more to her blood pressure spiking. The patient states now she's been on medication and she does have a reaction to a lot of the medications after being on it for a while. The patient states she was put on a new medication (not specified) two weeks before the shot. The patient also reported that she had flu symptoms like sniffles, and fever on an unknown date in May2021. The patient states her blood pressure has subsided quite a bit. The outcome of the events flu symptoms like sniffles, and fever was unknown while for other events was resolving.   Information on Lot/Batch number was available. Additional information has been requested