felt extreme tiredness; My arm injection site was slightly, a little bit of soreness/by day 3 the injection pain was gone. Caller stated that he had slight soreness; low temperature; chills; flu like symptoms; sneezing; headache; This is a spontaneous report from a contactable patient (patient). A 56-year-old male patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot Number: ER8735), via an unspecified route of administration, administered in Arm on 03May2021 (at the age of 56-year-old) as single dose for COVID-19 immunisation. The patient medical history was not reported. Concomitant medication(s) included mometasone furoate (NASONEX) taken for an unspecified indication, start and stop date were not reported. The patient had taken tylenol pm for the last 2 to 3 years for sleeping. The patient received his first dose of the Pfizer covid vaccine on 03May2021. Patient stated, he felt extreme tiredness after the first dose; tired all day checked his temperature it was 98.6F the next day no temperature. His arm injection site was slightly, a little bit of soreness but by day 2 almost gone and by day 3 no issues, no restriction or swelling. The patient did have chills. Last week (the 3rd week) today was day 24, on Monday and Tuesday he started feeling like "flu like symptoms" he was sneezing and his eyes. He had a headache. He took ibuprofen. He didn't get a fever last week but felt like he was sneezing a lot maybe it's that time where it's supposed to get to the 80% and the body was producing more antibodies. The patient inquired if it could be related to the pollen in the air. He uses Nasonex everyday and he had been using it everyday. He was sneezing. Maybe it's the vaccination completing the process. Patient stated, he did not get all the common side effects and the only thing he had was tiredness for the first day that was it, On scale 1 to 10, 10 means extremely tired and 1 was not tired at all and he works from home So It was average, he was not outside doing some physical labor, Just sit at his desk because he works from home, on scale 1 to 10 he felt like tiredness may be closer to 8, still tired. People work like 24 hours, but that was just first 12 hours, low temperature, no sore, soreness was there for only day one but that was gone. Patient stated that there was no concerns, he did not have any concern. The patient did not want putting out that he had concern, he just had a symptoms, Just had one of normal symptom just one, out of many, but how long was it may be one day that was the day he took the shot. It was day 23, he hadn't had any symptoms since the day one. that it does make any sense. The day out fever, tiredness and injection site pain 12-18 feeling unwell. He did not have the any of symptoms, none, except one and how long that last, only one day, that it. Patient stated the first dose on 03May2021 was no big deal, pretty ok, had tiredness but no fever. Patient stated that by day 3 the injection pain was gone. Patient stated that he had slight soreness after the first dose stating it was like the flu shot. Patient stated the pharmacist told him to take regular ibuprofen after the first dose if he had a fever noting he took two tablets after the first dose. Patient stated he had taken ibuprofen and tylenol pm. Patient stated he took a couple of days off work after the first dose. Patient wanted to know what percentage of participants showed low grade symptoms. Patient wanted to know which had the most significant amount, mild moderate or severe side effects. Patient asked if side effects have been shown to come back again. Patient asked does Pfizer have a plan for people that are uninsured and have to go to the ER. Patient stated that they are still studying the vaccine and it is showing 6 months robust immunity. Patient asked if there was a test for someone to see what their immunity level is and what are the 6 months topline analysis results of the Pfizer-BioNTech COVID-19 Vaccine. He also spoke about how the vaccine works and about building immunity up to 80% between doses. Outcome of the event injection site pain was recovered in 05May2021; other events was unknown.  Follow-up attempts completed. No further information expected.