unsteadiness in his balance; muscle pain from her left arm to his shoulder, neck and up to the left side of his face; After getting the shot, within hours, his muscles in his left arm, shoulder, left side of his neck up to the skull, and left side of his face got tightened up and very inflamed.; After getting the shot, within hours, his muscles in his left arm, shoulder, left side of his neck up to the skull, and left side of his face got tightened up and very inflamed.; Blurriness in his vision; 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 59-year-old male patient received bnt162b2 omi xbb.1.5 (BNT162B2 OMI XBB.1.5), on 02Oct2023 as dose 1, single (Lot number: HF9275) at the age of 59 years, in left arm for covid-19 immunisation. The patient had no relevant medical history. The patient's concomitant medications were not reported. Vaccination history included: bnt162b2 (DOSE 1, SINGLE, Batch/Lot Number: ER8729, Expiry: 31Jul2021, Anatomical site of vaccination: Injection in the arm), administration date: 16Apr2021, for COVID-19 immunisation; bnt162b2 (DOSE 2, SINGLE, Batch/Lot Number: EW0176, Expiry: 31Aug2021, Anatomical site of vaccination: Injection in the arm), administration date: 07May2021, for COVID-19 immunisation; bnt162b2 (DOSE 3 (BOOSTER), SINGLE, Batch/Lot Number: F48030, Anatomical site of vaccination: Injection in the arm), administration date: 16Nov2021, for COVID-19 immunisation; bnt162b2 (DOSE 4 (BOOSTER), SINGLE, Batch/Lot Number: FM0698, Anatomical site of vaccination: Injection in the arm), administration date: 14Apr2022, for COVID-19 immunisation. The following information was reported: MYOSITIS (non-serious), MUSCLE TIGHTNESS (non-serious) all with onset 02Oct2023, outcome "recovering" and all described as "After getting the shot, within hours, his muscles in his left arm, shoulder, left side of his neck up to the skull, and left side of his face got tightened up and very inflamed."; MYALGIA (non-serious) with onset 02Oct2023, outcome "recovering", described as "muscle pain from her left arm to his shoulder, neck and up to the left side of his face"; BALANCE DISORDER (non-serious) with onset 06Oct2023, outcome "not recovered", described as "unsteadiness in his balance"; VISION BLURRED (non-serious) with onset Oct2023, outcome "not recovered", described as "Blurriness in his vision". The events "muscle pain from her left arm to his shoulder, neck and up to the left side of his face", "after getting the shot, within hours, his muscles in his left arm, shoulder, left side of his neck up to the skull, and left side of his face got tightened up and very inflamed.", "unsteadiness in his balance" and "blurriness in his vision" required physician office visit. Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Caller reported unsteadiness in his balance, almost like he is on a boat, and blurriness in his vision. After getting the shot, within hours, his muscles in his left arm, shoulder, left side of his neck up to the skull, and left side of his face got tightened up and very inflamed. 3 days after that he started feeling off balance and his vision does not seem right, like a little blurry. He is scheduled for a ENT visit next Wednesday. He noticed the tightening of the muscles in his arm, should, neck and face on 02Oct2023 later that day as the day went on. This had improved a decent amount. He had been stretching and massaging trying to loosen the muscles up. It was still there, but had gotten better. Patient had no prior vaccinations (within 4 weeks).