Light headedness; loses equilibrium; couple of his fingers were numb/numbness in arm/ hand; pain in his left arm; This is a spontaneous report received from contactable reporter(s) (Consumer or other non-HCP). The reporter is the patient.  An 81-year-old male patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 31Oct2022 as dose 4 (booster), single (Batch/Lot number: unknown) at the age of 81 years for covid-19 immunisation. The patient's relevant medical history included: "Asbestosis" (ongoing), notes: Asbestosis. Concomitant medication(s) included: FLU VACCINE VII. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE), for Covid-19 immunization; Bnt162b2 (DOSE 2, SINGLE), for Covid-19 immunization; Bnt162b2 (DOSE 3, SINGLE), for Covid-19 immunization. The following information was reported: PAIN IN EXTREMITY (non-serious) with onset 31Oct2022, outcome "not recovered", described as "pain in his left arm"; DIZZINESS (non-serious), outcome "not recovered", described as "Light headedness"; BALANCE DISORDER (non-serious), outcome "not recovered", described as "loses equilibrium"; HYPOAESTHESIA (non-serious), outcome "unknown", described as "couple of his fingers were numb/numbness in arm/ hand".  Additional information: on 31Oct2022, he got his last COVID booster shot. The first night after his shot he developed a pain in his left arm. It was starting about 6-8 inches from his wrist to hand. He didn't think anything of it except it might be the vaccine. The second night after the shot. When he went to sleep his left arm hurt and there was numbness. His left hand was numb. It hurt like heck. Then, at 2 am on 03Nov2022, which would have been the 3rd day from the shot, he went to the hospital thinking he was having a stroke. They didn't think it was a stroke, but that it was just from the vaccine. But he has had symptoms since. He has been lightheaded. He loses equilibrium. Then, he saw the article come out about how a stroke could occur within 21 days of the booster. He thinks he had one the second day after his shot. The hospital didn't think it was a stroke. He went back a week ago to show them his hand was still number, and that couple of his fingers were numb. They think it might be carpal tunnel. They are testing him for that. They gave him a steroid shot in his hand yesterday. He still gets pain in his arm ever since it started, and he can still be lightheaded, and his equilibrium will be off. He thinks this might be more serious he was going to call the hospital again after reporting with Pfizer. He has had 4 vaccines total. All of them were Pfizer. The last one was the newest COVID booster. He doesn't have his vaccine or any of the information on his COVID shots at this time. He got the vaccine in his left arm. That was where his issues have been. He hasn't been able to close that left hand for about 10 years unless he was in a jacuzzi. Then, he can force it close. He can't pick anything off of floor with his hand now. Outcome: he got over how bad his arm was that night, but he still has pain in his lower arm. He has numbness in a few fingers and his hand. He has trouble holding a book even. Two weeks after the COVID booster he did get the flu shot at the same clinic. He wouldn't let them touch his left arm. He got it in his right arm. He does have a history of chest pains from Asbestosis. He was an Asbestos worker, and now has pains in his chest all of the time. That was why he got the vaccine. He was on oxygen at night, and sometimes during the day because of this. He thinks he had a stroke.   The information on the batch/lot number for BNT162b2, BNT162b2 omi ba.4-5 has been requested and will be submitted if and when received.