I am not able to move my arm stretching back.; has intermittent pain down to his elbow and wrist in his left arm; It has been several months & I have moderate to severe pain in the shoulder that radiates to the elbow/has intermittent pain down to his elbow and wrist in his left arm; It has been several months & I have moderate to severe pain in the shoulder that radiates to the elbow/whenever he reaches behind him it causes him pain in his left shoulder; It has been several months & I have moderate to severe pain in the shoulder that radiates to the elbow/whenever he reaches behind him it causes him pain in his left shoulder; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program. The reporter is the patient.  A 59 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 28Dec2021 (Lot number: 33025BD) at the age of 59 years as dose 3 (booster), single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose 1, Lot: EIV6207, Expiry: Unknown, Site of administration: Left Arm), administration date: 17Mar2021, when the patient was 58 years old, for Covid-19 Immunization; Bnt162b2 (Lot: 33025BD, Expiry: Unknown, Site of administration: right arm), administration date: 07Apr2021, when the patient was 59 years old, for Covid-19 Immunization. The following information was reported: ARTHRALGIA (non-serious), PAIN (non-serious) all with onset 29Dec2021, outcome "not recovered" and all described as "It has been several months & I have moderate to severe pain in the shoulder that radiates to the elbow/whenever he reaches behind him it causes him pain in his left shoulder"; ARTHRALGIA (non-serious) with onset 07Mar2022, outcome "not recovered", described as "It has been several months & I have moderate to severe pain in the shoulder that radiates to the elbow/has intermittent pain down to his elbow and wrist in his left arm"; MOBILITY DECREASED (non-serious), outcome "unknown", described as "I am not able to move my arm stretching back."; ARTHRALGIA (non-serious) with onset 07Mar2022, outcome "not recovered", described as "has intermittent pain down to his elbow and wrist in his left arm".  Additional information: Patient reported whenever he reaches behind him it causes him pain, and he also has been having intermittent pain down to his elbow and wrist in his left arm. Caller clarifies that the pain in his left shoulder whenever he reaches behind him started the morning after he got the booster Covid vaccine. The pain stayed the same for a long time, then just recently he started getting intermittent pain going down to his elbow and wrist in his left arm as well. Pfizer Covid 19 Vaccine 1st dose received on 17Mar2021 in right arm. He had a surgery scheduled for 13Jan2022 and he wasn't sure if they were going to make him get the booster in order to do the surgery, so he went ahead and got the booster just in case. States the pain in his left shoulder was there the next day when he woke up, he just attributed in to the shot. No prior Vaccinations (within 4 weeks), prior to the first administration date of the suspect vaccine(s). Patient made the statement that he tries to avoid moving too much because he had a 3rd back surgery since last June, on 13Jan2022. Time the vaccination was given early afternoon. Vaccination facility type was pharmacy. Additional Vaccines Administered on Same Date of the Pfizer Suspect was none. AE(s) following prior vaccinations was none. Relevant Tests were none. AE(s) did not require a visit to Emergency Room or Physician Office.  No follow-up attempts are possible. No further information is expected.