Vertigo; Extreme back pain/Extreme pains in his back; Chills; fever to at least 100; His joints were hurting him; sick as a dog/ill for 2.5 days after first one; started to feel different in the late afternoon; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 70 year-old male patient received bnt162b2 (BNT162B2), administered in arm right, administration date 20Aug2021 11:00 (Lot number: FC3181) at the age of 70 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Sick as heck", start date: 2021, stop date: 2021, notes: 6 month ago, his wife tested +ve Covid &sick as heck. He tested -ve &same symptom &both got over it. The patient took concomitant medications. The following information was reported: BACK PAIN (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "Extreme back pain/Extreme pains in his back"; CHILLS (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "Chills"; PYREXIA (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "fever to at least 100"; ARTHRALGIA (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "His joints were hurting him"; ILLNESS (non-serious), ILLNESS (non-serious) all with onset 20Aug2021, outcome "recovered" (Aug2021) and all described as "sick as a dog/ill for 2.5 days after first one"; FEELING ABNORMAL (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "started to feel different in the late afternoon"; VERTIGO (non-serious) with onset 23Aug2021, outcome "recovering", described as "Vertigo". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of back pain, chills, pyrexia, arthralgia, illness, illness, feeling abnormal, vertigo.  Additional events: Caller reported that he received his first covid vaccine dose on 20Aug. Afterwards he experienced extreme back pain, chills, a fever to 100 and his joints were hurting him. He then started experiencing Vertigo the Monday after and reports now "I got a little case of vertigo".  Caller also reports that 6 months ago, his wife tested positive for Covid and she got "sick as hell". Caller reports that he tested negative but he was also sick as heck with the same symptoms as his wife. He reports, "we both got over it" and asks, and asks if he should still get his second dose of the Covid vaccine on 10Sep. Consumer calling about the Pfizer COVID-19 vaccine who says he took the first shot when it was scheduled and got extremely ill for 2.5 days after first one, and he is supposed to have his second one in a couple days so he is kind of concerned. Caller says he took the first dose of the vaccine at approximately 11:00 AM and noticed he started to feel different in the late afternoon, then come evening time he had extreme pains in his back, he was extremely sick as a dog, fever to at least 100, chills, and his joints were hurting. He says that stayed with him until approximately midnight Sunday night and then it all left, he felt all better. He says he went to bed to sleep then. He says he did no treatment for the chills, fever, extreme back pain, he just took Tylenol. Caller says he doesn't know what dose he took of the generic Tylenol, just that it helped very, very little. generic Tylenol: Caller says he can't find it to provide dose or UPC/LOT/EXP for it, he knows it is not real Tylenol, it was off brand, which he says is pretty much the same shit. Documented as provided. Caller says he woke up on Monday with vertigo, so his wife called his family doctor who sent them to get some medication which made him feel strange so he got off it and went to physical therapy and that helped a little. He says it seemed like the vertigo was getting better, but now he is going to have to go back to see physical therapist again. Caller says that his vertigo got better after seeing the physical therapist, it was better for approximately a day and a half, then it returned not quite as bad but it did return so he will probably go back with physical therapist.    No follow-up attempts are possible. No further information is expected.