fever; achy; didn't feel so good; it had and expiration date of 7 days before; This is a spontaneous report received from contactable reporter(s) (Consumer or other non-HCP) from medical information team. The reporter is the patient.  A 77-year-old male patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 02Dec2022 as dose 5 (booster), single (Lot number: GJS342, Expiration Date: 25Nov2022) at the age of 77 years, in left arm for covid-19 immunisation. The patient's relevant medical history was not reported. There were no concomitant medications. Vaccination history included: BNT162b2 (Third Covid Vaccine: , Date: 19Aug2021, NDC: unknown, LOT: EWO171, EXP: unknown, All of his Covid Vaccines have been manufactured by Pfizer), administration date: 19Aug2021, when the patient was 76-year-old, for COVID-19 immunization; BNT162b2 (Fourth dose Covid Vaccine: , Date: 06May2022, NDC: unknown, LOT: FL3197, EXP: unknown, All of his Covid Vaccines have been manufactured by Pfizer), administration date: 06May2022, when the patient was 76-year-old, for COVID-19 immunization; Bnt162b2 (Dose 1, Single), for Covid-19 immunization; Bnt162b2 (Dose 2, Single), for Covid-19 immunization; Flu shot (He got flu shot, but that was more than 4 weeks prior.), for Immunization. The following information was reported: EXPIRED PRODUCT ADMINISTERED (non-serious) with onset 02Dec2022, outcome "unknown", described as "it had and expiration date of 7 days before"; PYREXIA (non-serious), outcome "recovered", described as "fever"; PAIN (non-serious), outcome "recovered", described as "achy"; MALAISE (non-serious), outcome "unknown", described as "didn't feel so good". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of pyrexia, pain, malaise, expired product administered.  Additional Information: Reported that the most recent Bivalent Covid booster. Was told by his doctor's office the booster was given seven days after the expiration date. Reporter asked MI about the validity of the dose and was directed back to his PCP. Reporter mentioned he had fever for one day that went away. Reporter was assuming that the dose was somewhat valid, and he assumes he got some type of vaccine since he had fever. Prior to this dose caller had primary Covid vaccine series and two Covid vaccine boosters. When he initially had shot, he had temperature of 99 to 100 at the highest. Fever was for one day and had a few aches and pain. He has had friends that said they had no reaction and some friends that had this reaction and some friends that had worst reaction. Reporter got the shot, and everything was fine. Got the booster at his primary care physician's office. His doctor's office knows his history and everything. Reporter does not know what to do and if he should get the shot again. They said he did not get anything, and it was like water inside him. Reporter said it could not be water if he had a fever. If it were a placebo he would not react. He did not feel so good. He thought that was a good thing not feeling good. It was expired because of the big box of all the vaccines they have; it was because maybe it was not in the freezer or just in the refrigerator.