neurological symptoms; forgot how to walk; severe headaches; they are just confused, can't keep thoughts in their heads; This is a spontaneous report received from a contactable reporter consumer or other non HCP, Program ID.  A 69-year-old male patient received BNT162b2 (BNT162B2), as dose number unknown, single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history included: "fatigue" (unspecified if ongoing). There were no concomitant medications. The following information was reported: NERVOUS SYSTEM DISORDER (non-serious), outcome "unknown", described as "neurological symptoms"; GAIT DISTURBANCE (non-serious), outcome "unknown", described as "forgot how to walk"; HEADACHE (non-serious), outcome "unknown", described as "severe headaches"; CONFUSIONAL STATE (non-serious), outcome "unknown", described as "they are just confused, can't keep thoughts in their heads". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Patient mother also experiencing the same. It was reported that possible side effects on his mother that had continued for 1.5 years. Reports his mother continues to get weak as well as other neurological symptoms and lack of mobility. Also mentioned that his brother-in-law has identical symptoms as his mother as well as 4 other people in the area of. Reporter confirms above information and adds it was not just his mother but it was brought to his attention that his brother in law and 2 other friends have identical symptoms too. They are young and they forgot how to walk, literally. They report severe headaches all the time, they are just confused, can't keep thoughts in their heads.  Reporter states that he just took his brother-in-law to the (Withheld), he lived by himself and he was stuck in bed covered in his own stuff. He was just found like this. He was identical as what his mother was experiencing. They are just 5 miles apart, he doesn't know if the Pfizer vaccines were refrigerated correctly or what. His brother-in-law at his at the (Withheld). His Brother-in-law has the same story, he had lived alone and his children are not in the area so no one had kept an eye on him. He was in the same predicament as his mother. His wife was at the Withheld with him now, he can't walk was incontinent and the exact same thing. His doctor has changed. Event: Thinks it started at Christmas, it is just odd 2 years ago he ran a marathon he has worked 2 jobs, he doesn't know what happened, he was a clean freak and this was a complete 180 from what he was. he was moving slow and complaining how weak he was and that he couldn't move. Caller states his mother would say it too. He was seeing him move the same way they have no relation and there was no explanation for being like this and they are the same age and it happened the same time. Reporter was unable to provide suspect product information. He was unable to confirm manufacture. Thinks the patient had 3 doses. He got his first 2 doses and then a booster dose at the (Withheld), He went around the same time as the caller's mother. He had blood clots in his legs here and there and then he gets put on a thinner. Attempted clarification if this was before or after the Covid vaccine and caller confirms it was before. He had battled that for many years, and will get a screen put in. Caller emphasizes how the patient was very active and works 2 jobs. He was at the (Withheld) his now, caller states he doesn't know what to do. The patient can't walk anymore it was identical to how his mother was. Unsteady gait can't pivot or move his feet. It was scary. It was like the neurons in his brain aren't working. he will try to keep his legs bent and can't explain why and it makes them upset. Patient medical History was unknown, he was just so fatigue he had to quit his job he can't move and can't walk its been a year. he digressed that quickly. Family Medical History was unknown, his mother just passed away at 89 years old from old age, she was as healthy as can be. Relevant Tests was unknown.  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.