stiff neck/at the outer area on the left side above his cervical shoulder where the base of the neck would be, to the lower back part of the ear on both sides of the body; pain/painful to turn his head /painful behind right ear/sharpest pain; booster; 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 66 year-old male patient received bnt162b2 (COMIRNATY), administration date 27Sep2021 (Lot number: FC3182) at the age of 65 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "depression" (unspecified if ongoing); "sadness" (unspecified if ongoing); "smoking cessation" (unspecified if ongoing); "bad cholesterol" (unspecified if ongoing). Concomitant medication(s) included: BUPROPION taken for depression, smoking cessation therapy, depressed mood. Vaccination history included: Bnt162b2 (1st Dose, Lot number: EN6202, Expiry: Jun2021, NDC: unknown), administration date: 23Feb2021, when the patient was 65 years old, for COVID-19 immunization; Bnt162b2 (2nd Dose, Lot number: ER2613, Expiry: Jul2021, NDC: unknown), administration date: 16Mar2021, when the patient was 65 years old, for COVID-19 immunization. The following information was reported: IMMUNISATION (non-serious) with onset 27Sep2021, outcome "unknown", described as "booster"; MUSCULOSKELETAL STIFFNESS (non-serious) with onset 28Sep2021, outcome "unknown", described as "stiff neck/at the outer area on the left side above his cervical shoulder where the base of the neck would be, to the lower back part of the ear on both sides of the body"; PAIN (non-serious) with onset 28Sep2021, outcome "unknown", described as "pain/painful to turn his head /painful behind right ear/sharpest pain".  Additional information: Patient had no prior vaccinations within 4 weeks. Patient had no Additional Vaccines Administered on Same Date of the Pfizer Suspect. Patient states that pain was on the left and right. It was on both sides and was very painful to the point where he has never had such a sharp pinpoint in his head or that area. Even after motion during the day, he was trying it now, it was still 10 and 2. He was looking to get wide angle mirrors for his sideview mirrors in his car because he can't check blind spots. Sometimes he has really good days and it seems like a better day. It was not a constant pain. It goes from back of ear and down to the collarbone was where the pain ends. It was when turning head one way or the other. If he turns to the right the pain was on the left. If he turns to left pain was on the right. It was almost like stretching. Once he starts moving during the day, when he stops, he will stiffen up quickly within a minute. If he leaves his head immobile for a minute, he will all of a sudden have a pain issue. At night he will lay in bed. If his head was turned to 10 o'clock after a minute he tries to turn to the right, but he will have to move so slow because of the pain. It will take four seconds to go from left to right because of pain. He was fine during the day when he was moving, but when he stops moving, when he rests for a minute, it was very painful to turn his head. He stated, let's say he was laying on his back watching to the left for a minute or two; It was very painful, and he has to rotate his neck to look straight slowly because it was that hurtful. He stated it was strictly left and right and it is not internal, it was just beneath the surface. It was not joint issues, strictly in the muscle area and in that area specifically the left side. He just had a physical and was in very good health so before making a doctor's appointment he wanted to check on these symptoms because he has never had them in his life. He said he knows there are lymph nodes and has read that they could be swollen after the vaccine, but he is not sure exactly where they are. His daughter said that for his age that his bad cholesterol might be a touch high, and he should look into it more as he gets older. Basically, the only medication he takes was generic for Wellbutrin, he was using it for and sadness. It is to increase dopamine. He has only been on it about 3 months. That sort of overlaps with things going on. He has gone through the sweats, and it interrupts his sleep. He has a ton of energy. It comes from the pharmacy in an amber bottle. It is slow-release XL. Caller doesn't have the initial lot number for Bupropion. He got a refill yesterday. On the pharmacy bottle it says original Rx Date 20Sep2021. That would have been the first date he took it. Caller doesn't see any lot numbers on the pharmacy bottle. On the pharmacy label there was the number 10-1828, but that was probably irrelevant as it was on another prescription bottle as well.  No follow-up attempts are possible. No further information is expected.