Feeling strange/felt his body changing/"a strange feeling" throughout his whole body; Fever all over body; I thought I would just lay down in bed and I could not do that; got 3 or 4 hours of sleep in chair; Pain in every joint in body, toes, ankles, knees everywhere; Pain in every joint in body, toes, ankles, knees everywhere; Looked at my hand, took out the thumb and it was like firm; Lied down on the bed and immediately, it was like I was drugged, just gone; felt body was just floating down into the bed; developed an "intense pain" all over his body/the pain he experienced after the doses of vaccine, he would rate as an 8 or 9; slept for 10-10.5 hours; This is a spontaneous report from a contactable consumer (patient himself). A 78-years-old male patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, lot number: EW0158; Expiration date: unknown) via an unspecified route of administration on 13Apr2021 (at age of 78-years-old) as DOSE 2, SINGLE and patient had received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, lot number: ER2513; Expiration date: unknown) via an unspecified route of administration, administered in Arm Left on 22Mar2021 16:10 (at age of 78-years-old) as DOSE 1, SINGLE for COVID-19 immunization. Medical history included ongoing arthritis; diagnosed 20 years ago and COVID-19 from 29Nov2020 to an unknown date. There were no concomitant medications reported. Family medical history relevant to AE(s) was none. AE(s) following prior vaccinations was none. On an unspecified date it was reported that, the consumer stated, he had the Pfizer COVID-19 Vaccine shot (later confirmed) yesterday in left arm and it was like nothing. He hardly felt the shot. He sat for 15 minutes and they had served and felt fine, so he left. When he got in the car, drove home and he was fine for probably about 4 hours, it was actually like 5 hours. But then around 10:30 when he normally get to bed, he went into bed and thought feel really strange here. And had heart problems in the past but did not think this was heart problem at all. But anyway, thought just sit in the chair and he had a fever all over body, it was not painful at all, no pain whatsoever. But just felt something was going to happen. So thought he would just lay down in bed and he could not do that, so he sat in the chair and got 3 or 4 hours of sleep. And woke up at 4 o' clock in the morning exactly and the pain was at 8 or 9. Every joint, and he do have arthritis but can walk around, can be all fine. He was 78, but the pain in every joint in body, toes, ankles, knees everywhere. In fact, it was interesting, when he sat here in the chair it did pain, he looked at hand and took out the thumb and it was like firm. And whenever he put it in front of hand, the pain would be incredible from that joint and every finger hurt but it was pretty much awful but he didn't know. He thought he should go the Emergency room in the Hospital and he was like, he was just going to stay here for a little while. So, he sat there for like another hour and he thought well maybe if he will try, he can go back to sleep. He went and lied down on the bed and immediately, it was like he was drugged, just gone and felt his body was just floating down into the bed and he went to really, really comfortable sleep for 2 hours. He had set the alarm for 2 hours later. 2 hours later, when the alarm went off, he put his feet out of the edge of bed and did stand up, he was dramatically better. His joints were bad but they were not bad as before. Consumer further stated, he had the virus on 29Nov2020. He went to the emergency room at the hospital and they shot this liquid in my arm and took an hour and they took an hour for observation. They had injected in his arm and they said since you had this, you were not going to be able to get virus for three or four months. Consumer stated, he did not need to talk to anybody else. Just turned that information over to the people, that might be helpful to them so that they know that this could happen to somebody. The pain was very, very bad, every joint. When he got out of bed, he could barely walk, it was that bad and thought what was going on here. But now, every hour that goes by, he get better and better to the point that hopefully, that will pass. So, he just wanted to let you know, maybe he can help somebody else. States when he had his second shot, he was told since he had the infusion and waited 3 months, he thought this time he wouldn't go through the pain. Caller stated it was every bit as bad as the first for 16 hours the most intense part. Stated he had pain from one tip of his shoulder to other and into base of the skull and every joint in his body hurt like hell. States someone brought him some Tylenol and it definitely made the pain easier. States he wanted to call and let Pfizer know and he was afraid if he takes the vaccine again in a year that he will get that intense pain. States he is absolutely amazed at how bad it could be. Caller stated he does feel it is a combination of the vaccine and his arthritis. States somehow the way it attacked his joints, he felt pain in all his joints, toes, ankles but he doesn't have arthritis in those, just his knees and hands little finger, nothing like all the rest of the joints. States with the second vaccine her could tell that going to have an issue. States in the period of 5- 10 minutes, he had the same situation that he had before but this time he didn't have the 45minute preamble of saying was he having a heart attack? he was very calm and had a strange feeling in his body and then it went away that he had with the first vaccine. After the first dose, he felt his body changing and reported "a strange feeling" throughout his whole body that lasted for about an hour. Then he developed an intense pain all over his body that lasted for 16 hours, he slept for 10-10.5 hours, and woke up with pain that lasted a few more hours then resolved. The same thing happened after the second dose, but without the strange feeling. He said he was used to a dull pain from his arthritis, that he would rate as 0.5 out of 10; but the pain he experienced after the doses of vaccine, he would rate as an 8 or 9. But wanted to know if other people have reported symptoms or an experience like his or not. Adverse event did not require a visit to emergency room physician office. Therapeutic measures were taken as a result of developed an intense pain all over his body/the pain he experienced after the doses of vaccine, he would rate as an 8 or 9 (pain). The patient underwent lab tests and procedures which included pain assessment: at 8 or 9 on an unspecified date. The outcome of all events was recovering.