Stroke like symptoms; He tried to speak he couldn't respond appropriately/he couldn't answer a question or make sense; The patient got the Pfizer covid vaccine/he patient received his first Moderna vaccine on 26Jan2021 and his second one on 24Feb2021; The patient got the Pfizer covid vaccine/he patient received his first Moderna vaccine on 26Jan2021 and his second one on 24Feb2021; Booster; Headache; Tired; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team.  A 83 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 28Nov2021 (Lot number: FJ1620) at the age of 83 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Blood pressure high" (unspecified if ongoing); "Cholesterol" (unspecified if ongoing); "Pre-diabetic" (unspecified if ongoing); "Closter phobic" (unspecified if ongoing); "Reflux" (unspecified if ongoing). Concomitant medication(s) included: CENTRUM SILVER [ASCORBIC ACID; BETACAROTENE; BIOTIN; CALCIUM; CHROMIUM; COLECALCIFEROL; COPPER; FOLIC ACID; IODINE; IRON; LYCOPENE; MAGNESIUM; MANGANESE; NICOTINAMIDE; PANTOTHENIC ACID; PHOSPHORUS; PHYTOMENADIONE; POTASSIUM; PYRIDOXINE HYDROCHLORIDE; RETINOL; RIBOFLAVIN; FISH OIL; FLUTICASONE; LISINOPRIL taken for blood pressure abnormal; METFORMIN taken for glucose tolerance impaired; OMEPRAZOLE taken for gastrooesophageal reflux disease; PRAVASTATIN taken for blood cholesterol abnormal; TIMOLOL taken for glaucoma and RENADYL (S. thermophilus-KB19, L acidophilus-KB27, and B longum-KB31) taken as supplement for healthy kidneys. Vaccination history included: Moderna vaccine (1st Dose), administration date: 26Jan2021, when the patient was 82 years old, for Immunization, reaction(s): "No adverse event"; Moderna vaccine (2nd Dose), administration date: 24Feb2021, when the patient was 82 years old, for Immunization, reaction(s): "No adverse event". The following information was reported: CEREBROVASCULAR ACCIDENT (medically significant) with onset 29Nov2021, outcome "recovered" (30Nov2021), described as "Stroke like symptoms"; UNRESPONSIVE TO STIMULI (medically significant) with onset 29Nov2021, outcome "recovered" (30Nov2021), described as "He tried to speak he couldn't respond appropriately/he couldn't answer a question or make sense"; OFF LABEL USE (non-serious), INTERCHANGE OF VACCINE PRODUCTS (non-serious) all with onset 28Nov2021, outcome "unknown" and all described as "The patient got the Pfizer covid vaccine/he patient received his first Moderna vaccine on 26Jan2021 and his second one on 24Feb2021"; IMMUNISATION (non-serious) with onset 28Nov2021, outcome "unknown", described as "Booster"; HEADACHE (non-serious) with onset 29Nov2021, outcome "recovered" (30Nov2021), described as "Headache"; FATIGUE (non-serious) with onset 29Nov2021, outcome "recovered" (30Nov2021), described as "Tired". Therapeutic measures were taken as a result of cerebrovascular accident, unresponsive to stimuli, headache, fatigue with prescribed medication and vitamins and 2 doses of Tylenol twice the next day, the arthritis quantity (as reported). Clinical course was reported that the patient did not know how to work the coffee machine or turn on the TV, and he could not talk and answered questions or makes sense, and that when he tried to speak he couldn't respond appropriately, and according to reported that it lasted a full day.  The lot number for [BNT162B2], was not provided and will be requested during follow up.