seizure; 17Nov2021: Booster Vaccine; Memory loss; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 63 year-old patient received bnt162b2 (BNT162B2), administered in arm, administration date 17Nov2021 15:00 (Lot number: FH8028) at the age of 63 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Epilepsy Seizures", start date: 04May2021 (unspecified if ongoing), notes: After 2nd shot had 1st seizure in morning.; "Another seizure", start date: 02Nov2021 (unspecified if ongoing), notes: lost consciousness each time. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose: 1, Time: Afternoon, Anatomical site of injection: Arm, Lot Number: EN6208, Exp Date: 30Jun2021), administration date: 11Mar2021, for Covid-19 immunization, reaction(s): "Seizure"; Bnt162b2 (Dose: 2, Time: Afternoon, Anatomical site of injection: Arm, Lot Number: ER8737, Exp Date: 31Jul2021), administration date: 01Apr2021, for Covid-19 immunization, reaction(s): "Seizure". The following information was reported: IMMUNISATION (non-serious) with onset 17Nov2021, outcome "unknown", described as "17Nov2021: Booster Vaccine"; SEIZURE (medically significant) with onset 30Nov2021 08:00, outcome "unknown", described as "seizure"; AMNESIA (non-serious) with onset 2021, outcome "unknown", described as "Memory loss". Therapeutic measures were taken as a result of seizure.  Clinical Course: Patient had reported on 30Nov2021: Drove to work (against doctor orders) around 6:00 and clocked in and recalled of stocking cigarettes. Patient came out of cigarette room and looked at the co-worker and said, "was nauseous." The co-worker said patient eyes rolled to the back of patient head and began twitching, and she grabbed before the patient hit the floor. Patient have no recall of any of this. Manager said she brought out the chair and patient was sitting in and that it took both she and other co-worker to get seated in the chair she brought out. "She said" stiffened up and grabbed onto the chair arms so tight that she was afraid patient would break one of my hands. She said that she then began rubbing patient hands and talking to patient calmly trying to get him to let go of the chair. She finally was able to get patient to let go and she then called for an ambulance. Patient recall none of this. Patient asked her how long it lasted, and she said 10-12 minutes total. When Patient started coming out of it, patient felt dazed and confused. The patient's manager drove patient to his house so patient could spend the day with his wife so she could look after me. It was patient's understanding in speaking with her that patient had another seizure while at their house, and she called patient's son to come home. She said patient was picking at clothes, rolling up pant legs, not making a whole lot of sense, etc. The patient had no recall of any of this. It was reported that on 03Dec2021, the doctor ordered patient not to drive for at least 6 months until seizure free on medication, cook, bathe, etc. These seizures did not start until after receiving the Covid vaccine. Each time the patient received a vaccination, it was shortly after that patient had a seizure. The patient had never in life had a seizure disorder of any kind and have, for the most part, been a healthy person. The patient believed the two are related.  No follow-up attempts are possible. No further information is expected.