blood pressure was shot through the roof/blood pressure went up to 189/102; feeling light headed; very strong headache; feeling out of thought; heart was racing; wasn't feeling well; felt awful; This is a spontaneous report from a contactable consumer (patient herself). A 64-year-old female patient received BNT162B2 (Pfizer-BioNTech COVID-19 mRNA vaccine), dose 1 via an unspecified route of administration, administered in right arm, at age 64 years, on 12Mar2021 08:50 (Batch/Lot Number: EN6207; Expiration Date: 31Jul2021) as DOSE 1, SINGLE for COVID-19 immunisation, she did not want to catch COVID and she have not had COVID but she was an essential worker and she wanted protection. Medical history included high cholesterol and blood pressure high controlled by medication, and coronary artery disease from unspecified dates. Concomitant medications included losartan taken for hypertension; and pravastatin taken for blood cholesterol increased; all start and stop date were not reported. Patient stated that she was fortunate enough to get an appointment for a Pfizer COVID shot on 12Mar2021, 08:50 in the morning and sat down, had the shot. The shot was painless. They said that you needed to go to an area for 15 minutes so that they could keep an eye on you and see if you have any reactions and so at about patient would say maybe 5 to 8 minutes in sitting calmly, all of a sudden, she started showing sort of like feeling light headed and then began a very strong headache. So, patient started feeling out of thought and then I realized that her heart was racing and she wasn't feeling well. By the time they gave the time and make sure the time of and they said you need to identify if you are not feeling well, we will come talk to you. So when the 15 minutes was over she wanted to see if it is going to happen again or is it going to subside. But it didn't. She approached the woman with her timer and she said that she don't feel well and she got some issue going on that she don't know. She was perfectly fine when she was walking this morning so, she said come over, come back, have a seat, let's take your blood pressure. So they came over and her blood pressure she would say in about a normal basis is usually about 136/76 that it was last time taken. It is a little elevated and she does take medication. But she was telling that her blood pressure was shot through the roof. Her blood pressure went up to 189/102 and the medical staff in the (Facility name) where she got the appointment went crazy. They said you sit down one moment we have to get a team here, so a team with a stretcher and all kinds of medical equipment said to me might have to get you to ER right now and she was like she knew pretty elevated and she felt awful but she don't really know what to do and they said let's take your vital and then they that group that came in probably from an ambulance said let's take your blood pressure again. So they did both arms several times and it is still that elevated. For a period of time it was holding that number and they said we could take you to emergency room or you can have your husband can take you. It is up to you. And patient said that she really have to go and they said you are in danger and you are in dangerous number. So her husband took her to the ER and they did a lot of blood work upon her and everything trying to get the blood pressure down and they gave her some TYLENOL for her headache and they finally her something that can help hopefully bring her numbers down which as of today (at the time of report on 13Mar2021) she  think it was down to like 160 which is still too high for her. So she was working on that but it concerned her and she don't know if anyone has had that, have they had a reaction. But what concerns her is she had to take a second shot to be fully covered and so she said to the doctor in the ER, should she be taking the second shot and he said yes, sure. So it is concerning her me and she don't know if Pfizer have advice for that. She have not been able to get in touch with her primary care doctor but she thought because the make up of the vaccine, she wanted to touch a brief with Pfizer first. She was concerned that it could happen to her again to shoot back up if she take the second shot. But she was more worried or equally worried about not having the 2nd shot, she need that covered, she don't want to stop probably the in succession. She also stated that she believes that it was a nurse that gave her the first dose of vaccine in her right arm. Patient stated that she was put on an IV and took a full blood work up and they came back and said her my blood work was great. There wasn't any problem. Other treatment for events was Baby aspirin 81mg to help blood flow. Patient stated that she have a headache still, she was more clear because it did come down, its not down where it should be down at its normal range. She have a very slight light headedness, but heart racing stopped. She also stated that interesting thing was it is very strong in the beginning but it sort of subside a little bit and then it will come back, it was sort of like it was on more than off. The first day, yesterday most of times, it was hurting quite a bit, like days were on, she had the episodes, it wasn't there and all of a sudden it come back. She woke up this morning with it, she would say its still there but it was much less intense then it was yesterday and early morning today at the time of report on 13Mar2021. She also stated that she took TYLENOL on the day of reporting, it helped the headache but she still have, its diminished. The outcome of the event very strong headache was recovering; for feeling light headed, it was not recovered;  for heart was racing it was recovered on an unspecified date in 2021; while for the other events, it was unknown.   No follow-up attempts are possible. No further information is expected.