felt like she was going to die/blood pressure shot up to over 222; Severe headache; Jittery; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 85 year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), administered in arm, administration date 20Feb2021 (Lot number: EL9266) at the age of 85 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "problem with her neck in the past" (unspecified if ongoing). She doesn't remember the name of it, but it's where her blood runs from her heart up to her brain, but that was awhile ago; "She breaks out and reacts to penicillin" (unspecified if ongoing); "she's allergic to about 15-20 different medications" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 1, around 9:30-10am, lot number: EL8982), administration date: 22Jan2021, when the patient was 85 years old, for covid-19 immunisation. The following information was reported: HYPERTENSION (hospitalization, medically significant) with onset 12Mar2021, outcome "not recovered", described as "felt like she was going to die/blood pressure shot up to over 222"; HEADACHE (non-serious) with onset 2021, outcome "unknown", described as "Severe headache"; FEELING JITTERY (non-serious) with onset 2021, outcome "unknown", described as "Jittery". The patient was hospitalized for hypertension (start date: 12Mar2021). The event "felt like she was going to die/blood pressure shot up to over 222" was evaluated at the physician office visit and emergency room visit. The patient underwent the following laboratory tests and procedures: blood pressure measurement: (12Mar2021) high/over 222. Therapeutic measures were taken as a result of hypertension. Clinical course: The patient didn't have any blood pressure problems before getting the vaccine. She got the first 2 doses in Jan2021 and Feb2021 and 3 weeks later she went to the hospital because her blood pressure shot up to over 222; she doesn't remember what the bottom number was. With this she just knew that something was wrong so she called her son to bring her to the emergency room. They worked on her blood pressure all day on 12Mar2021. She has gone back to the ER 3 other times because she has felt like that. They gave her medicine, which helps most of the time; states that she now takes 9 pills a day. States that she thinks this all has something to do with the vaccine. She knows she is old, but this happened so soon after getting the vaccine. Previously, the only medicine she took was an aspirin and a 25mg blood pressure pill every night. She has blue eyes so she is mixed, but she just goes by withheld. On 12Mar2021, she went to ER for high blood pressure. She stayed overnight in the ER while they worked on her blood pressure. She went back to the ER twice in Apr2021, and again in Jul2021. Without the blood pressure medicine they put her on she would die she thinks. Sometimes she forgets to take it; she has missed it a few times in the afternoon and when that happens she feels terrible. States that sometimes, even when she's taken all her medicine she still feels that way, with a headache and jittery. She thinks that some days her medications are not as effective as other days. he doctors had to try different things. When this happens she just lays down in bed and when she wakes up she feels better. Attempts made to clarify which medication she thinks is not effective some days, but caller just stated that it was all the medications they put her on after getting the vaccine. Metoprolol, Losartan, Pregabalin, Hydralazine, Amlodipine. No follow-up attempts are possible. No further information is expected.