This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team, Program ID: The reporter is the patient. A 52-year-old male patient received BNT162b2 (BNT162B2), as dose 4 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Bnt162b2 (Primary Immunization series complete., Pfizer Covid19 vaccine for his primary series and 2 booster doses.), for COVID-19 Immunization; Bnt162b2 (First booster dose., Pfizer Covid19 vaccine for his primary series and 2 booster doses.), for COVID-19 Immunization. The following information was reported: ARTHRALGIA (non-serious), outcome "not recovered", described as "constant severe joint pain that started 3-4 months after his last vaccine/He is having problems/strange in your body where it attacks your joints/joint pain"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (non-serious), outcome "not recovered", described as "I haven't been able to work". The event "constant severe joint pain that started 3-4 months after his last vaccine/he is having problems/strange in your body where it attacks your joints/joint pain" required physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of arthralgia. Additional information: On 06Aug2022, it was reported that the patient has been having problems after the COVID vaccine. The patient received all of the Pfizer COVID-19 vaccines, the primary series and both booster doses. The last booster was "maybe a month or month and half ago, maybe" (as reported). He has been having problems since the first vaccine. The patient stated, "I am having problems, I think it is strange in your body where it attacks your joints". The patient asked if there are people that call in with this joint pain. The patient stated that "It would be nice if they (Pfizer) could pay me for my hyperbaric oxygen and treatments, I am just trying to get better. I haven't been able to work." When asked about treatment for the event, the patient stated, "I have had all kinds of stuff, yeah. I am not going to go through all of that, I tried all 'kind of stuff' (Further clarifications unknown) it is going to be a long list." The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received. Follow-up (06Aug2022): This is a follow-up report to confirm previously submitted information for this case 202201047235. Case 202201017935 was incorrectly submitted to E2b trading partners with the same E2B Company number of this case 202201047235. Case 202201017935 is considered invalid and corresponding information is re-entered under manufacturer report number 202201047235. Updated information: reporter details, patient details (weight, height), suspect vaccine details, event details (treatment information provided, outcome updated to not recovered), concomitant therapy (updated to none) and new event (I haven't been able to work). The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.