she couldn't really focus or think while on the computer.  Patient didn't know if she was feeling foggy or if her headache was making it difficult to focus; Fever; Nauseous; Had the runs; Chills; Fatigue; Horrible, blinding headache; Whole arm ached; Lethargic; Feeling terrible like had the worst flu ever; got sick; her arm stopped aching, but she still experienced pain at the injection site; This is a spontaneous report from a contactable consumer (patient). A 59-year-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Solution for injection; Lot number: EN6202) via an unspecified route of administration in right arm on 04Mar2021 (at the age of 59-year-old) as single dose for COVID-19 immunization. Medical history of the patient included Gastric bypass [12 years ago]. Concomitant medication included Trazodone started taking 3 years ago, does not take consistently but more as needed, taken for sleep, nutritional supplements started on an unspecified date and was ongoing, taken because of her age, to be a better and healthy, take multivitamin to be a better and healthy, Folic acid taken to be a better and healthy, Vitamin D taken to be better and healthy. On 04Mar2021, after the first dose of vaccination, patient got a fever, got sick, was nauseous [lasted about 3 days], had the runs [she had the runs just through next day, 05Mar2021 and all day at work], she felt lethargic, was feeling terrible like she had the worst flu ever, whole arm ached and her arm felt like it went through the wringer, chills lasted definitely through the night of 04Mar2021, horrible blinding headache. Patient body temperature [fever] was 101, she was not sure how long the fever lasted, but while at work on Friday, 05Mar2021, she was feeling horrible. She was at work on 05Mar2021, she couldn't really focus or think while on the computer. Patient didn't know if she was feeling foggy or if her headache [headache felt like a migraine and lasted for 3 days] was making it difficult to focus. Fatigue last longer than the 3 days that her other side effects following the Covid-19 vaccine were experienced and was the last to go, she felt better but was so tired all the time. The fatigue did not last beyond the week. Patient has never had a migraine before, but her daughter gets migraines and told the patient that's how she feels when she gets a migraine. Reportedly, the ache in her arm lasted awhile, throughout the whole week. Caller reported that her arm stopped aching, but she still experienced pain at the injection site [start date: Mar2021]. She felt like someone had pounded her arm at the injection site. Patient drank lots of water and moved her arm around a lot to help the pain diminish. As per the reporter, the injection site hurt following the second dose as well, but that it wasn't as bad as the first dose. Patient has been tested for Covid-19 multiple times and has never had it. Patient symptoms following the first dose of the Covid-19 vaccine lasted a few days. Patient got the vaccine on a Thursday and went to work Friday, then stayed in bed all weekend. Caller reported that she was very physically fit and very healthy, so the side effects she experienced were very unexpected. Outcome of the event pain at the injection site was not resolved, for events got sick, felt lethargic, Feeling terrible like had the worst flu ever, couldn't really focus or think while on the computer was unknown and for other events were resolved on an unspecified date in Mar2021.  No follow-up attempts are needed; Information related to batch/Lot number could not be re-quested.