Chest pain; Back pain; The chest and back pain has worsened; Sore throat, like when you get a cold and it's kind of hard to swallow; Came back positive was the inflammation test; Couldn't walk; back inflammation; Diabetes is out of whack; Every joint hurt badly; This is a spontaneous report from a contactable consumer (patient). This 53-year-old male patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE Lot number: EW0151), via an unspecified route of administration, on 05Apr2021 (at the age of 53-years-old) as a single dose for COVID-19 vaccination, in left arm. The medical history included: Diabetes. Concomitant medications not reported. The patient reported that he got the first shot on 05Apr2021 and something went wrong. Every joint hurt really bad (From: Apr2021 To: 18Apr2021, duration 17 days), and he couldn't walk. So, he went to the emergency room and the ER people told him he had arthritis and to go home and take Tylenol. He came home, took Tylenol, and then his chest and back started hurting. He went to the doctor and the doctor ran an arthritis test, lupus test, and all these tests, and it came back negative. The only test that came back positive was the inflammation test. He had 3 times the normal amount of inflammation a person is supposed to have. He stated his chest hurts really bad and his back hurts really bad. He keeps going to the hospital and then they keep sending him home. Caller states he is not sure if he's not going to die but all of his other items are out of whack, like his diabetes is out of whack. He can confirm after all the joint pain went away, then the chest and back pain/inflammation popped up. The chest and back pain has worsened. It's worse than yesterday. He has not taken any aspirin or anything. The back pain has worsened. It feels like he did chest exercises. It hurts to the touch. He has back inflammation. Treatment: He clarified that he was instructed to take Tylenol Arthritis and not aspirin. He confirmed he was taking Tylenol Arthritis. No additional details provided. He mentioned that someone told him he could not take Aleve. He does not know what to do and what he can and cannot take also has diabetes and his blood sugar seems to be extremely high, which it never is. They are working on getting his blood sugar under control, but it seems like it's been out of whack for a little bit. He later clarified that he switched medications prior in March and he is on some new stuff and he expected it to be out of whack. He also adds that it's like he has a sore throat but he doesn't have a sore throat, it's like when you get a cold and it's kind of hard to swallow. He explains when arthritis issue/joint stuff cleared up, he had the sore throat, the chest pain and sore throat appeared. It's been 3 or 4 days and it has not gone away. ER Dates - 15Apr2021. Doctor's office - 16Apr2021. Lab tests included: 16Apr2021Test: Muscle enzyme Result: normal; Thyroid test Result: normal; blood cell count result: normal; rheumatoid arthritis test  Result: negative; Lupus test  Result: negative; Inflammation Marker Blood test Result: High; 3x normal; EKG  Result: Fine. The clinical outcome of the event Diabetes is out of whack, chest and back pain has worsened, Came back positive was the inflammation test, Couldn't walk, back inflammation was unknown; Every joint hurt badly was recovered; Chest plates, back pain, sore throat was not recovered.   No follow-up attempts are possible. No further information is expected.