soreness in my arm, my left arm, very mild, barely could even feel it; administered with the vaccine on the top of the shoulder / it was not the deltoid; might have hit a nerve or something; it hurt really bad; might have hit a nerve or something; This is a spontaneous report received from contactable reporter(s) (Other HCP and Consumer or other non HCP) for a Pfizer sponsored program (159558). The reporter is the patient.  A 59 year-old male patient received bnt162b2 (BNT162B2), administration date 28Mar2021 (Lot number: ER8732) at the age of 59 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "He broke all of his ribs" (unspecified if ongoing); "Couldn't breath" (unspecified if ongoing); "residual pain" (unspecified if ongoing); "osteoarthritis" (unspecified if ongoing); "Various other joint  pain" (unspecified if ongoing); "motorcycle accident" (unspecified if ongoing), notes: 10 years ago. Concomitant medication(s) included: CELEBREX taken for pain, osteoarthritis, arthralgia; TYLENOL EXTRA STRENGTH taken for pain, osteoarthritis, arthralgia; PLAVIX. The following information was reported: PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "soreness in my arm, my left arm, very mild, barely could even feel it"; PRODUCT ADMINISTERED AT INAPPROPRIATE SITE (non-serious) with onset 28Mar2021, outcome "unknown", described as "administered with the vaccine on the top of the shoulder / it was not the deltoid"; WRONG TECHNIQUE IN PRODUCT USAGE PROCESS (non-serious), VACCINATION SITE NERVE DAMAGE (non-serious) all with onset 28Mar2021, outcome "unknown" and all described as "might have hit a nerve or something"; VACCINATION SITE PAIN (non-serious) with onset 28Mar2021, outcome "unknown", described as "it hurt really bad". Additional information: The patient had his first Pfizer Covid vaccine yesterday, 28Mar2021; however, it was also reported that the start date of the vaccine was on 05Mar2021 (possibly discrepant). It was reported that the patient was administered with the vaccine on the top of the shoulder, stated it was not the deltoid and it hurt really bad, might have hit a nerve or something. Stated he should not have mentioned that since it has nothing to do with the vaccine but the way it was given. The patient had a motorcycle accident 10 years ago where he broke all of his ribs and couldn't breath, and stated, he still has residual pain from that, osteoarthritis and various other joint pain. Patient was querying if there were any advisories regarding taking non-steroidal anti-inflammatory and Tylenol with the vaccine. Patient stated that he was on Plavix and was asked if he had allergies but did not ask specifically if he took an anti-inflammatory; he was scared that he felt like he did something wrong. The patient was concerned if he has done something really wrong because he has been taking 200mg Celebrex twice a day for many months, and two extra strength Tylenol with it, he stated that he did not stop the Celebrex before he got the shot vaccine, that he got off his elliptical after working out, took two Tylenol then went to get his shot. He stated that afterwards, he was researching and read online that Cox2 inhibitors and acetaminophen may inhibit the immune response to the vaccine and may diminish the effectiveness of the vaccine and that people should avoid vigorous exercise prior to the vaccine as it can alter how the vaccine was distributed in the muscle. The patient wasnted to know if this was true and wanted to make sure he did not do anything wrong.  No follow-up attempts are possible. No further information is expected.