back issues/had pain in his back for three days, pain then disappeared and then came back/ Real serious back pain; could barely walk/ Real difficult to walk; shoulder pain/ Pain in his right shoulder; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 84 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 11Feb2021 (Lot number: EL9262) at the age of 84 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "frozen shoulder issues" (ongoing), notes: have a history of "frozen shoulder issues" for thirty years; "blood pressure" (ongoing), notes: he also takes blood pressure and cholesterol medication; "cholesterol" (ongoing), notes: he also takes blood pressure and cholesterol medication; "eye drops" (ongoing), notes: Why was the patient taking Concomitant Products Gen-Timolol (Verbatim): eye drops; "allergies" (unspecified if ongoing), notes: Why was the patient taking Concomitant Products cetirizine (Verbatim): allergies. Concomitant medication(s) included: AMLODIPINE taken for blood pressure measurement (ongoing); METOPROLOL taken for blood pressure measurement (ongoing); ROSUVASTATIN taken for blood cholesterol (ongoing); GEN-TIMOLOL taken for eye disorder (ongoing); CETRIZINE taken for hypersensitivity; VITAMIN D NOS; TERAZOSIN (ongoing). Vaccination history included: Bnt162b2 (First dose, administered on 21Jan2021, Lot Number: EL9262; NDC and Expiry date unknown by the caller.), administration date: 21Jan2021, when the patient was 84 years old, for COVID-19 immunization. The following information was reported: BACK PAIN (non-serious) with onset 14Feb2021, outcome "recovered" (2021), described as "back issues/had pain in his back for three days, pain then disappeared and then came back/ Real serious back pain"; GAIT DISTURBANCE (non-serious) with onset 14Feb2021, outcome "recovered" (2021), described as "could barely walk/ Real difficult to walk"; ARTHRALGIA (non-serious) with onset Feb2021, outcome "recovered", described as "shoulder pain/ Pain in his right shoulder".  Additional Information: Caller is a consumer. Pfizer covid 19 vaccines confirmed. Caller says, "I am in line to get the booster shot of the Pfizer covid 19 vaccine". Caller then shared that two week after his second dose of the vaccine, received on 11Feb2021, caller experienced "unusual" issues. Caller said he developed "brand new" back issues where he had was walking across his kitchen to his refrigerator and by the time, he reached the fridge he "could barely walk". The pain that developed lasted three days, disappeared, and then came back. Caller then reported he had shoulder pain that last three days. Caller does have a history of "frozen shoulder issues" for thirty years. Caller asked if he should receive the booster dose of the vaccine. Referred to HCP for the symptom management and for question about the booster dose. Treatment disclaimer stated and emphasized. Additional Information for Other Conditions: on and off for 30 years, states he is active in pickle ball, and it is probably due to that. Caller received second dose of Pfizer Covid vaccine on 11Feb2021, two weeks after that dose he started having unusual issues, he was walking across kitchen to refrigerator her could barely walk, had pain in his back for three days, pain then disappeared and then came back and also had shoulder pain for three days, shoulder pain occurred after the back pain. Reports having no back issues before the vaccine but did describe having frozen shoulder issues off and on for 30 years, but back issues are brand new. Agent states that she told caller that we do not provide treatment recommendations and to contact his healthcare provider. Caller states he also takes blood pressure and cholesterol medication. States he also takes vitamin D and Q-10 supplements. Caller states he did not receive any other vaccinations within 4 weeks of the Pfizer Covid vaccines. Says he is due for his booster shot and thought he should call and get an opinion before getting it. States that after his second shot, 2 weeks after, for the first time in his life, he had real serious back pain.  States it was real difficult to walk and it lasted for about three days.  Over those three days it kept getting better, then it disappeared.  A day after that he had pain in his right shoulder.  States that is not uncommon for him as he has had issues with a frozen shoulder and shoulder pain in the past. The back issue, however, was brand new.  He is scheduled for his booster shot of the vaccine.  Follow-up attempts are completed. No further information is expected.