Headache; Chills; Upset stomach; He also had sinus issues; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team.  A 71 year-old male patient received bnt162b2 (COMIRNATY), administration date 22Oct2021 08:30 (Lot number: FE3590, Expiration Date: 31May2022) at the age of 71 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Diabetic" (ongoing), notes: Verbatim: Diabetic, He was diagnosed years ago. He has been a diabetic about 20 years. There were no concomitant medications. Vaccination history included: Bnt162b2 (First dose: lot number: ER8730. Given on 27Mar2021. Expiry: unknown. NDC: unknown.), administration date: 27Mar2021, when the patient was 71 years old, for COVID-19 immunization; Bnt162b2 (Second dose: given on 19Apr2021. He thinks the lot number is ER8734. It is written on the card. Expiry: unknown. NDC: unknown.), administration date: 19Apr2021, when the patient was 71 years old, for COVID-19 immunization. The following information was reported: HEADACHE (non-serious) with onset 22Oct2021 10:30, outcome "not recovered", described as "Headache"; CHILLS (non-serious) with onset 22Oct2021 10:30, outcome "not recovered", described as "Chills"; ABDOMINAL DISCOMFORT (non-serious) with onset 22Oct2021 10:30, outcome "not recovered", described as "Upset stomach"; SINUS DISORDER (non-serious) with onset 22Oct2021 10:30, outcome "not recovered", described as "He also had sinus issues".  Additional information: Caller stated she and her husband both received the Comirnaty booster dose last Friday. Caller said they experienced side effects which she guesses are normal because they're listed on the paper given to them but she still wanted to speak to someone about this because their doctor won't see her. Their doctor is saying she has Covid. Caller asked if there is any information as to why they would say it's Covid. Caller mentioned she has not been tested and there is no positive test. The symptoms she experienced developed on the same day are vomiting, pain in her stomach, severe headache, sweats, chills, and her sinuses are messed up. The symptoms of her husband were headaches, chills, an upset stomach but no occurrence of throwing up, and he also had sinus issues. Caller added she couldn't understand why she can't go in her doctor's clinic. Additional Information for Other Conditions: He was diagnosed years ago. He has been a diabetic about 20 years. Investigation Assessment: No. She is calling because she and her husband had the last COVID booster shot on Friday and both are experiencing symptoms that haven't gone away. Event Details: Clarified symptoms as headache, chills, and really bad upset stomach but not throwing up.  Symptoms started about 2 hours after shot on 22Oct2021. He got the shot about 8:30. Also having sinus issues and that is the only symptom that is continuing. Pfizer COVID Shot. First dose: lot number: ER8730. Given on 27Mar2021. Expiry: unknown. NDC: unknown. Second dose: given on 19Apr2021. He thinks the lot number is ER8734. It is written on the card. Expiry: unknown. NDC: unknown. Booster: given on 22Oct2021, lot number: FE3590, expiry: 31May2022, NDC: unknown. His symptoms weren't that severe, but he did have a reaction.  No follow-up attempts are possible. No further information is expected.