Quite tired; He has a slight headache; he felt achy/Body aches and pains; Injection site pain; Had a fever 99.7F, 99.9 fever, later 101F; discomfort/slight injection site discomfort; This is a spontaneous report from a contactable consumer (patient). A 76-years-old male patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE, Solution for injection, lot number EL9263, expiry date not reported), intramuscular on 26Jan2021 12:00 at a single dose in the left arm for COVID-19 immunization. Medical history included years ago he did have an issue with a lung disease when he went to (country name); he did have COVID 19 in Mar2020 and he recovered from that; high blood pressure; psoriatic arthritis diagnosed 30 years ago; and non-smoker. Family medical history included that they are all smokers in his family, and he is not. His sister died of pancreatic cancer and his mother died of oat cell lung cancer. Concomitant medications included valsartan (DIOVAN 160 mg) for high blood pressure at 160 mg, daily started 3.5 years ago to an unknown date; and patient was taking some health store vitamins. The patient previously took infliximab (REMICADE) on unspecified dates 5 years ago as Arthritis medication administered IV and apparently it lowered his immune system and he wound up in the hospital with a lung infection. He recovered completely. He does not have a lot or expiration. It was administered in the doctor's office and he does not go to that doctor anymore. It was reported that patient had no prior vaccinations (within 4 weeks).  He had second dose of Shingles vaccine and it was close to 4 weeks ago. Shingrix administered on upper left arm received it at an in-store clinic, and patient had slight injection site discomfort. No other vaccines administered on same date of the Pfizer suspect. Patient received the first dose of the Covid 19 vaccine on 26Jan2021 at noon, with just a bit of discomfort. He seemed to be fine except slight injection site discomfort, also reported as injection site discomfort on left upper arm, on 26Jan2021. Later that night (also reported as last night 26Jan2021 23:00) he felt achy, he had bad body aches and pain and still has it this morning. Injection site pain worsened last night and now it has improved. He woke up in the middle of the night, and had a fever 99.7 F, 99.9 fever and later it went as high as 101 F (26Jan2021). He took Advil and Tylenol. The body aches improved after he took 2 Tylenol when he took his temperature. He took temperature about 1.5 hour ago. He went into bed and waited and took it again about 1/2 hour ago and it went up to 101. He then took Tylenol and took his temperature again. This morning (27Jan2021) his temperature was now back/down to 99.3 F. He was still feeling aches but not as bad as before. He might still have a slight temperature now, but it has improved. He believed vaccination was given in the muscle because it was in the upper part of his arm where the skin is thinner. He had a slight headache and was quite tired (27Jan2021). Patient asked if there's anything he should do or be concerned about. He was scheduled for the second dose on 16Feb2021 and he heard that the second dose was stronger than the first one, that after the second dose there may be more side effect, and he wanted to know if this is true and wanted to know if he can get the second dose. Therapeutic measures were taken as a result of the events discomfort/slight injection site discomfort, he felt achy/body aches and pains, fever, and injection site pain. Patient had no ER or physician's office required. The events discomfort/slight injection site discomfort, he felt achy/body aches and pains, fever, and injection site pain were recovering. The outcome of the event tired and headache was unknown.