very tired; dizzy; had the runs; thought he was going to pass out; was very hard to hold up his head and stand up straight; was very hard to hold up his head and stand up straight; back and chest hurt; back and chest hurt; 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.  An 84-year-old male patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 19Oct2022 as dose 5 (booster), single (Lot number: 616739) at the age of 84 years, in right arm for covid-19 immunisation; influenza vaccine (FLU VACCINE VII), on 05Oct2022 as dose number unknown, single (Batch/Lot number: unknown) for immunisation. The patient's relevant medical history included: "Stent in heart" (unspecified if ongoing), notes: Stent in heart 20 years ago; "Blood thinner" (unspecified if ongoing); "blood pressure" (unspecified if ongoing); "heart" (unspecified if ongoing); "Cholesterol" (unspecified if ongoing); "Gout" (unspecified if ongoing). Concomitant medication(s) included: ATENOLOL taken for anticoagulant therapy, blood pressure abnormal (ongoing); ASPIRIN [ACETYLSALICYLIC ACID] taken for cardiac failure; ATORVASTATIN taken for blood cholesterol (ongoing); RAMIPRIL taken for cardiac failure, blood pressure abnormal, blood cholesterol (ongoing); ALLOPURINOL taken for gout (ongoing). Vaccination history included: BNT162b2 (DOSE 1, SINGLE , 1st dose received on 23Jan2021., Manufacturer: Pfizer, Lot: EL9262, NDC, Expiry: Unknown), administration date: 23Jan2021, when the patient was 83-year-old, for Covid-19 immunization; BNT162b2 (DOSE 2, SINGLE , 2nd dose received on 13Feb2021., Manufacturer: Pfizer, Lot: EN6200, NDC, Expiry: Unknown), administration date: 13Feb2021, when the patient was 83-year-old, for Covid-19 immunization; BNT162b2 (DOSE 3 (BOOSTER), SINGLE, Booster on 06Oct2021, Manufacturer: Pfizer, Lot: 301558A, states the number is smudgy on the card., NDC, Expiry: Unknown), administration date: 06Oct2021, when the patient was 83-year-old, for Covid-19 immunization; BNT162b2 (DOSE 4 (BOOSTER), SINGLE, Booster on 27May2022. , Manufacturer: Pfizer, Lot: FK9893, NDC, Expiry: Unknown), administration date: 27May2022, when the patient was 84-year-old, for Covid-19 immunization. The following information was reported: CHEST PAIN (non-serious), BACK PAIN (non-serious) all with onset 20Oct2022, outcome "recovered" (20Oct2022) and all described as "back and chest hurt"; DIZZINESS (non-serious) with onset 20Oct2022, outcome "recovered" (20Oct2022), described as "dizzy"; DIARRHOEA (non-serious) with onset 20Oct2022, outcome "recovered" (20Oct2022), described as "had the runs"; PRESYNCOPE (non-serious) with onset 20Oct2022, outcome "recovered" (20Oct2022), described as "thought he was going to pass out"; DYSSTASIA (non-serious), POSTURE ABNORMAL (non-serious) all with onset 20Oct2022, outcome "recovered" (20Oct2022) and all described as "was very hard to hold up his head and stand up straight"; FATIGUE (non-serious), outcome "unknown", described as "very tired".  Additional Information: Caller stated he received his 4th booster shot yesterday, and this morning when he got up he was very dizzy and thought he was going to pass out, his back and chest was killing him, and he got the runs. He laid down for a few minutes and then it passed. Stated that he didn't even feel the shot yesterday. He never had a problem before with the Pfizer Vaccines before. Right now, he felt fine. It was also very hard to hold up his head and stand up straight. Currently he feels a little tired but that's normal for him. He got a Flu shot on 05Oct2022 at pharmacy. His paperwork stated that it was the Influenza vaccine type A and B surfa, fluid quadrivalent prior vaccinations (within 4 weeks).  No follow-up attempts are needed. No further information is expected.