tingling; numbness on his left hand and developed on his left foot; he have a "mast cell activation syndrome"; dizziness; feels uncoordinated; sometimes red taste; Per caller he developed sensitivity to food; he's getting hives after eating tomatoes; there's itching in his arms and abdomen; his blood vessel is bulging out of his thumb and there's a blood vessel on his nails; after the vaccination, it affect his cognitive functions; it affect his cognitive functions and motor functions sometimes; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A male patient received bnt162b2 (BNT162B2), administration date 22Apr2021 (Batch/Lot number: unknown) as dose 2, single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (Dose1, Unknown Manufacturer), for Covid-19 immunization.  The following information was reported: MAST CELL ACTIVATION SYNDROME (medically significant) with onset 2021, outcome "unknown", described as "he have a "mast cell activation syndrome""; DIZZINESS (non-serious) with onset 2021, outcome "unknown", described as "dizziness"; COORDINATION ABNORMAL (non-serious) with onset 2021, outcome "unknown", described as "feels uncoordinated"; TASTE DISORDER (non-serious) with onset 2021, outcome "unknown", described as "sometimes red taste"; FOOD ALLERGY (non-serious) with onset 2021, outcome "unknown", described as "Per caller he developed sensitivity to food"; URTICARIA (non-serious) with onset 2021, outcome "unknown", described as "he's getting hives after eating tomatoes"; PRURITUS (non-serious) with onset 2021, outcome "unknown", described as "there's itching in his arms and abdomen"; ANGIOPATHY (non-serious) with onset 2021, outcome "unknown", described as "his blood vessel is bulging out of his thumb and there's a blood vessel on his nails"; COGNITIVE DISORDER (non-serious) with onset 2021, outcome "unknown", described as "after the vaccination, it affect his cognitive functions"; MOTOR DYSFUNCTION (non-serious) with onset 2021, outcome "unknown", described as "it affect his cognitive functions and motor functions sometimes"; PARAESTHESIA (non-serious) with onset May2021, outcome "unknown", described as "tingling"; HYPOAESTHESIA (non-serious) with onset May2021, outcome "unknown", described as "numbness on his left hand and developed on his left foot". The patient underwent the following laboratory tests and procedures: electrocardiogram: unknown result; magnetic resonance imaging: unknown result.  Clinical course was reported as, he had his 2nd dose on 22Apr2021 and he did reported his symptoms by phone first and he filled-up a form for the report. Per caller, he feels like based on his research, he have a "mast cell activation syndrome", his example was, he used to eat tomatoes before and now whenever he eats tomatoes there's a strange symptoms, he feels dizziness, feels uncoordinated, sometimes red taste. Per caller he developed sensitivity to food, he's getting hives after eating tomatoes. Last night, he woke up with hives, there's itching in his arms and abdomen. Caller also mentioned that his blood vessel is bulging out of his thumb and there's a blood vessel on his nails. Caller also added that after the vaccination, it affect his cognitive functions and motor functions sometimes. He's been dealing with this symptoms since April last year, and his symptoms began last May 7th or 8th of 2021, the symptoms were tingling, numbness on his left hand and developed on his left foot. He did EKG and MRI, he was seen by a lot of medical practitioners, he went to a neurologist, allergist and dermatologist and none of them have the information on his case. Caller also stated that many other people also experienced similar symptoms like him.   The lot number for bnt162b2 was not provided and will be requested during follow up.