Stomach flu symptoms; Achy body; Joint aches/Has pain in his hip; Pfizer booster shot/at the same time he got the flu shot; Has pain in his groin and hip; Barely able to walk; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 70-year-old male patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 16Sep2022 as dose number unknown (booster), single (Batch/Lot number: unknown) at the age of 70 years, in left deltoid for covid-19 immunisation; influenza vaccine (INFLUENZA), on 16Sep2022 as dose number unknown, single (Batch/Lot number: unknown), in left deltoid for immunisation. The patient's relevant medical history included: "Infection on his knee" (unspecified if ongoing), notes: he was in the hospital for an infection on his knee; "He has an artificial knee joint and taking out the knee joint" (unspecified if ongoing), notes: Has an artificial knee joint; "Surgery", start date: 2022 (unspecified if ongoing), notes: His last surgery was in Mar or Apr. There were no concomitant medications. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE), for COVID-19 immunization; Bnt162b2 (DOSE 2, SINGLE), for COVID-19 immunization. The following information was reported: GAIT INABILITY (non-serious) with onset 2022, outcome "unknown", described as "Barely able to walk"; GROIN PAIN (non-serious) with onset 2022, outcome "unknown", described as "Has pain in his groin and hip"; PRODUCT USE ISSUE (non-serious) with onset 16Sep2022, outcome "unknown", described as "Pfizer booster shot/at the same time he got the flu shot"; PAIN (non-serious) with onset 18Sep2022, outcome "unknown", described as "Achy body"; ARTHRALGIA (non-serious) with onset 18Sep2022, outcome "not recovered", described as "Joint aches/Has pain in his hip"; GASTROENTERITIS VIRAL (non-serious) with onset 18Sep2022, outcome "unknown", described as "Stomach flu symptoms". The events "achy body", "joint aches/has pain in his hip" and "has pain in his groin and hip" required physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of pain, arthralgia, groin pain.  Additional information: It was reported that the patient's most recent Pfizer booster shot was two weeks ago and at the same time he got the flu shot and he got shot on Friday and on Saturday he was fine and Sunday he had stomach flu symptoms and achy body and joint aches and had for the whole next week. He said he talked to other people and mostly older folks who had same issue. He said the pain he had now, he did not have before. Right side of hip was the best part of his body and after the shots he had pain in his groin and hip and he was barely able to walk for a few days. The reporter said the combination of shots and others had the same reaction and he mentioned to the Doctor and said he heard things like that. The reporter said some events had improved and some events had passed through day to day and something else would happen the next day with another part of his body. The reporter said persisting on right hand side of the hip. He went to see the Doctor after he had pains that did not go away in his hips and stated on the 18Sep2022 and last week the Doctor gave him this (Methylprednisolone) to try to help. Treatment: Gave prescription for pain and was Tramadol. Caller had blood test yesterday and did not think there were any results yet. The reporter confirmed he received all but one of the boosters and he received the booster in the hospital when he went for surgery a few months back.   The information on the batch/lot number for BNT162b2, BNT162b2 omi ba.4-5 has been requested and will be submitted if and when received.