had to have double carpal tunnel surgery; severe reactive arthritis; unable to walk without assistance; I was reduced to showering and dressing with aid from my spouse; Pain; Had extreme full body muscle pain; Had extreme joint pain; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 53 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 10Sep2021 09:00 (Lot number: FC3183) as dose 2, single for covid-19 immunisation. Relevant medical history included: "Covid-19" (unspecified if ongoing), notes: if covid prior vaccination: Yes; "Controlled high blood pressure" (unspecified if ongoing); "GERD" (unspecified if ongoing). Concomitant medication(s) included: LOSARTAN; PANTOPRAZOLE; VITAMIN D3; ZINC. Vaccination history included: Covid-19 vaccine (Dose 1, Batch/Lot No: FC3181, Vaccine Administration Time: 09:00 AM, Location of injection: Arm Left), administration date: 20Aug2021, for Covid-19 immunization, reaction(s): "extreme joint pain", "extreme muscle pain", "I was unable to get out of bed or dress myself".   The following information was reported: CARPAL TUNNEL SYNDROME (medically significant) with onset 2021, outcome "not recovered", described as "had to have double carpal tunnel surgery"; ARTHRITIS REACTIVE (non-serious) with onset 2021, outcome "not recovered", described as "severe reactive arthritis"; GAIT INABILITY (non-serious) with onset 2021, outcome "not recovered", described as "unable to walk without assistance"; GENERAL PHYSICAL HEALTH DETERIORATION (non-serious) with onset 2021, outcome "not recovered", described as "I was reduced to showering and dressing with aid from my spouse"; PAIN (non-serious) with onset 2021, outcome "not recovered", described as "Pain"; MYALGIA (non-serious) with onset 2021, outcome "not recovered", described as "Had extreme full body muscle pain"; ARTHRALGIA (non-serious) with onset 2021, outcome "not recovered", described as "Had extreme joint pain". The events "had to have double carpal tunnel surgery", "severe reactive arthritis", "unable to walk without assistance", "i was reduced to showering and dressing with aid from my spouse", "pain", "had extreme full body muscle pain" and "had extreme joint pain" were evaluated at the physician office visit. The patient underwent the following laboratory tests and procedures: investigation: (unspecified date) severe reactive arthritis; sars-cov-2 test: (18Nov2021) negative, notes: Test type: Nasal swab. Therapeutic measures were taken as a result of carpal tunnel syndrome, arthritis reactive, gait inability, general physical health deterioration, pain, myalgia, arthralgia.  Clinical Course: Three days after first dose,he had extreme joint and muscle pain. He was unable to get out of bed or dress myself. The symptoms gradually got somewhat better over three weeks and then he had 2nd dose of vaccine. Following this dose I was unable to walk without assistance and had extreme full body muscle and joint pain. He was formerly very active, teaching martial arts and personal training. Within three days he was reduced to showering and dressing with aid from spouse. He had numerous at doctor's appointments, tests and scans and it was concluded that he had severe reactive arthritis from the Covid-19 vaccination. This has dramatically affected my life in many aspects. He have had to be placed on high dose steroids and other medications. The inflammation was so bad in hands and wrists that had to have double carpal tunnel surgery. He had been in constant pain for 5 months. The patient was treated with high dose steroids, colchicine, sulfasalazine, cel. The patient had Covid-19 prior to vaccination. The patient had tested Covid-19 positive post vaccination. There were no other vaccine in 4 weeks.