Blood pressure shot up extremely high; Heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again; Heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again; Heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 59 year-old female patient received bnt162b2 (BNT162B2), administered in arm right, administration date 24Sep2021 16:45 (Lot number: FD8448, Expiration Date: Oct2021) at the age of 59 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "has one kidney" (unspecified if ongoing), notes: has one kidney. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose number: 1, Time: around 5 PM, Site: right arm , Lot: FC3181, Expiry Date: Oct2021, ), administration date: 24Aug2021, when the patient was 58 years old, for COVID-19 immunization. The following information was reported: HYPERTENSION (non-serious) with onset 26Sep2021, outcome "unknown", described as "Blood pressure shot up extremely high"; HEART RATE INCREASED (non-serious), PALPITATIONS (non-serious), ANXIETY (non-serious) all with onset 26Sep2021, outcome "unknown" and all described as "Heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again". The events "blood pressure shot up extremely high", "heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again", "heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again" and "heart rate shot up to 149, diagnosed as palpitations, has anxiety thinking it may happen again" were evaluated at the emergency room visit. Relevant laboratory tests and procedures are available in the appropriate section.  Additional Information: Why was the patient taking Pfizer vaccine, for Covid (Verbatim): The doctor's kept pushing for her to take the vaccine. Other Products: No. Patient History: No. Investigation Assessment: No. Caller states she is calling about the Pfizer vaccine, for Covid. Caller stated she did not take the first vaccine until it was FDA approved. Caller stated her doctor suggested she take it, because she has one kidney, but she was suspicious. Caller stated her cardiologist recommended that she take it. Caller stated on Friday, she had the second vaccine, and on Sunday night, she had to call withheld. Caller reported that her blood pressure shot up extremely high and her heart rate went up to 149, and she was diagnosed with palpitations. Caller confirmed, she was released from the emergency room. Caller stated that her research shows that people 40 years old and younger had experienced some of those issues so she was concerned about myocarditis. Caller states that the emergency room doctor told her to talk to her cardiologist, and she is now wearing a heart monitor for 2 days, and then after that, to make an appointment with her primary care doctor.   Follow-up attempts are completed. No further information is expected.