overwhelming feeling of dizziness/she felt the sudden urge to faint and then became so dizzy that she had to lie down on the couch; very weak; very tired; she has slept a lot; she felt the sudden urge to faint; unable to visually focus, if she closed her eyes and she opened one eye it would be blurry and the people on TV were sliding off the screen and  everything was sliding away; pain behind her left eye into her head; she tried to get up to go to the bathroom the room was spinning; an inner ear problem or problems with the "crystals in her ear"; When she got up, she couldn't put her two feet on the floor out of bed without leaning towards the left; This is a spontaneous report from a contactable consumer (patient). An 82-years-old female patient received the second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Lot Number: EN6200) via an unspecified route of administration, administered in Arm Left on 01Mar2021 11:00 as SINGLE DOSE for covid-19 immunisation, at 82 years old. Medical history included history of a stroke from an unknown date (previous history of a stroke 19 months ago). There were no concomitant medications. The patient previously received BNT162B2(Lot# EW5318) on 07Feb2021, at 82 years old for COVID-19 immunization and experienced no adverse event (no reaction). Other historical vaccine included Flu shot (influenza vaccine) on an unspecified date and experienced almost killed her. The patient reported no reaction and no problems (no pain, no nausea, no anything) from the second dose until the evening of 08Mar2021 when she was in her kitchen cooking and chopping vegetables, she felt the sudden urge to faint and then became so dizzy that she had to lie down on the couch. She had an overwhelming feeling of dizziness. A feeling like she wanted to faint, and she never faints. Her daughter got her to the sofa. She couldn't get off the couch. The room spun unbelievably. Everything spun. She went to bed and when she woke up, she felt worse. She states that the dizziness was worse, she was unable to visually focus, if she closed her eyes and she opened one eye it would be blurry and the people on TV were sliding off the screen and  everything was sliding away, and she had pain behind her left eye into her head. When she tried to get up to go to the bathroom the room was spinning. It lasted through the next day (09Mar2021). When she got up, she couldn't put her two feet on the floor out of bed without leaning towards the left. She didn't fall. It was so bad she had to grab onto things to walk.  During that day they brought her downstairs and she stayed on the sofa and it just got worse. Her daughter had her call her primary care doctor and he said that if her neurologist had heard any of what had happened, then go to the emergency room, to which is where she was 19 months ago with her stroke. She spent the 11Mar2021 and 12Mar2021 in hospital (due to dizziness). They couldn't find anything. She had not had a new stroke.  She had every test known to man. They did a full neurological work up including an MRI, CT Scan, carotid artery studies and checked everything and could not find the cause of her extreme dizziness. They did confirm that she did not have a stroke. The told her that she could potentially have an inner ear problem or problems with the "crystals in her ear" which could be causing her dizziness, however, they could not positively identify the cause of her problem. They found evidence of her previous stoke. When they were sending her home, it says on her discharge paperwork, they were going to put her in a vestibular clinic. It has to do with crystals in her ear. She was still dizzy and still walking with a walker which she hasn't had to use in 19 months since her stroke. And she has slept a lot, the night she was discharged on 12Mar2021 and the following day. On 14Mar2021 she woke up a little bit. But on 15Mar2021, she is very tired and very weak and still very dizzy. The dizziness is not the room revolving kind. She is taking an anti dizzy pill. She has to see her doctor tomorrow morning, her neurologist at hospital. The dizziness is still persisting but not as bad and she can jump up and walk and do things with the walker. Regarding tests done at the hospital, she came out with shining colors apparently.  All tests came through fine. There was no evidence of stroke, her blood pressure, triglycerides, fluids or liquids, everything tested perfect. When querying if she had gone to her physician's office, she reported she had a morning call with her doctor on a phone appointment and he sent her straight to the hospital. She is still dizzy and walking with a walker which she has not had to use in 19 months. She states that doing a lot of hand-eye coordination exercises at home. She has the television on to check her vision which seems to be returning to normal. She stated, "I just don't know where to go from here." She stated that she has a follow up appointment the following day with her neurologist. She wanted to know if this side effect has been reported and how long she can expect to feel this way.  The patient underwent lab tests and procedures on Mar2021 which included blood pressure, triglyceride, fluids or liquids: tested perfect; and CAT scan, EKG had unknown results. On 11Mar2021, CT Scan: unknown results (could not find the cause of her extreme dizziness. They did confirm that she did not have a stroke/they could not positively identify the cause of her problem); MRI: unknown results (could not find the cause of her extreme dizziness. They did confirm that she did not have a stroke/they could not positively identify the cause of her problem). Therapeutic measures were taken as a result of overwhelming feeling of dizziness and unable to visually focus. Outcome of the event dizziness was not recovered; outcome of the event unable to visually focus (visual disturbance) was recovered on an unspecified date in Mar2021; while room was spinning (spinning sensation) was recovered on 09Mar2021, while unknown for the other events.