found out COVID-19 the 30th by the COVID; I was trembling; could not walk/with my legs, my feet's, can't hardy walk, use walker to walk around, it's causing my foot to not work properly. I cannot move my toes; It was standing low when I was in the hospital/I came home I don't know it's my neither or what I was 169 and 117 at the bottom; they give me down it was high couple of time and one time all I have my heartbeat was beating 131; they thought what patient had is a stroke; feeling chills; This is a spontaneous report from a contactable consumer (patient). A 64-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in left arm on 23Mar2021 (Batch/Lot Number: Unknown) as 1ST DOSE, SINGLE for COVID-19 immunisation. Medical history included diabetes mellitus and hypertension. Patient had got diabetes, hypertension and he got everything. Concomitant medications included insulin taken for an unspecified indication, start and stop date were not reported and unspecified drugs, concomitant Medications: Consumer stated he was taking 2 different insulin. Patient was taking a fast release insulin at the hospital and he did not know it will take but he got told to his primary doctor as he was first he was taking (medication name not clear and not confirmed) he was taking that's the insulin. he did not know what it was. Diagnosis date for diabetes and hypertension: Consumer stated they give he down it was high couple of time and one time all patient had his heartbeat was beating 131 so he called 911. So, patient did not know what caused it but they got everything under control and patient called 911 (Further clarification unknown hence not captured as event), they kept he in hospital for 11 days but patient know something was going on when he first got the Covid shot, he felt after his first injection 2 or 3 days later he was feeling chills and then that was it but by the time and patient took that on 23Mar2021 by the time, all of a sudden patient did not know the day it was it to be in the March because he went for testing and then later on 30Mar2021 the caller found out that he had Covid after getting the vaccine. Patient had the first shot on 23Mar2021 and patient was trembling, he could not walk, he was crazy. It took about 4 or 5 days he went to get out of the bed and he cannot walk at out. he came what at all his wife look and then shut down because patient had not experienced that before and they thought what patient had is a stroke and patient had in my eyes, in so it was not a stroke, that major (Further clarification unknown) but they never told he what it could have been or what it was. Patient stayed in hospital for 11 days after he got that first shot. Patient had CAT (computerized tomography) scan and had MRI (Magnetic resonance imaging) and some other skin they did it with machines in your leg but before it could be they did all that and patient did not know what they did like what they did like he was about in Emergency room. Patient was still experiencing the events with his legs, his feet's, he could not hardy walk, he used walker to walk around because his equilibrity was going off and patient had no problem with his equilibrity (as reported). Patient was still experiencing events they tried to do surgery on his legs but they get his had got his diabetes patient was back on the control he take medications for that, patient could not carry out medications because he didn't know about the number and then they got his high blood pressure, they got down to control it was 118 last time patient had seen like 118-75. It was standing low when patient was in the hospital (Further not clarified hence not captured as event) So, when he came home he did not know it's his neither or what patient was 169 and 117 at the bottom so patient did not know what they got, what's going on. It was causing his foot to not work properly. Patient could not move his toes forward. The outcome of event could not walk was not recovered, of events was unknown.; Sender's Comments: Linked Report(s) : US-PFIZER INC-2021493685 same patient, same product, different dose and events.