Tired/Feels wore out; Hurting of his arm; fatigued; Feeling out of it and out of whack; weak; hot flashes; skin felt warm; Real slight headache; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient. Other Case identifier(s): US-PFIZER INC-2021775210.  A 74 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 18Jun2021 09:00 (Lot number: EW0158) at the age of 74 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Blood pressure" (unspecified if ongoing), notes: Verbatim: Blood pressure. Concomitant medication(s) included: TAMSULOSIN (ongoing); FINASTERIDE (ongoing); DILTIAZEM (ongoing); ASPIRIN (ongoing). Past drug history included: Bicillin, start date: 1967, for Bacterial infection, reaction(s): "sick". Vaccination history included: Flu vaccine, for Immunisation, reaction(s): "allergic", "Flu virus". The following information was reported: FATIGUE (non-serious) with onset 19Jun2021, outcome "not recovered", described as "fatigued"; FEELING ABNORMAL (non-serious) with onset 19Jun2021, outcome "not recovered", described as "Feeling out of it and out of whack"; ASTHENIA (non-serious) with onset 19Jun2021, outcome "not recovered", described as "weak"; HOT FLUSH (non-serious) with onset 19Jun2021, outcome "unknown", described as "hot flashes"; FEELING HOT (non-serious) with onset 19Jun2021, outcome "unknown", described as "skin felt warm"; HEADACHE (non-serious) with onset 19Jun2021, outcome "unknown", described as "Real slight headache"; FATIGUE (non-serious) with onset 20Jun2021, outcome "not recovered", described as "Tired/Feels wore out"; AXILLARY PAIN (non-serious) with onset 19Jun2021, outcome "unknown", described as "Hurting of his arm". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: When probing for information on the flu vaccine that caused him to have the flu patient states he stopped taking the flu vaccine about 3 or 4 years ago. His mother was the same way. She and him would get the flu vaccine at the same time, get sick at the same time and get well at the same time. He does not have the NDC/Lot/Expiry for the flu vaccine. He declines to file a safety report for his mother, she passed away last January. His doctor told him he was allergic to the flu vaccine. He had the pneumonia vaccine and had no reaction to that. When probing medical history patient informed he took a blood pressure medication and reports his blood pressure averages about 150/70mmHg and heartrate averages about 50 beats per minute. Blood pressure can go up or down, maybe 130mmHg to 159mmHg but on average blood pressure was about 145-150mmHg. Patient had a couple of hot flashes Saturday on 19Jun2021 that lasted about 30 seconds. His skin felt warm and then it went away and 30 minutes later it came back but only lasted a few seconds. It not happened again. Patient had a slight, a real slight headache. On a scale of 0-10 his headache was probably a 3. The headache occurred on the evening after he took the vaccine. The next day was Saturday, on 19Jun2021 and he had a slight headache on that day and on Sunday, on 20Jun2021. patient experienced no fever, no chills, and no temperature. Patient just feels wore out.  "Hurting of his arm" but went away the next day. He also stated that he had a slight headache which lasted for about 2 to 3 days.  No follow-up attempts are possible. No further information is expected.