High fever; I ached all over, I slept a lot and didn't do much of anything; I ached all over, I slept a lot and didn't do much of anything; don't feel quite right/I felt bad for a week/felt like I was dying; I basically don't remember much; I felt like the worst case of Flu I ever had; This is a spontaneous report from a contactable consumer (patient)  This 69-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE), dose 1 via an unspecified route of administration, administered in Arm Right on 21Mar2021 (Batch/Lot Number: ER2613) as SINGLE DOSE for covid-19 immunisation.Age at vacciantion :69 years.Medical history included fibromyalgia, Idiopathic thrombocytopenic purpura, arthritis, neuropathy at my feet, neck injury, autoimmune diseases. Concomitant medication(s) included celecoxib (CELEBREX) taken for neck injury, start and stop date were not reported; dexamethasone (DEXAMETHASONE) taken for immune thrombocytopenia, start and stop date were not reported; pregabalin (LYRICA) taken for neuropathy at my feet and for fibromyalgia, start and stop date were not reported.  Consumer stated, "I had, its not anaphylaxis reaction to the Pfizer injection. I had a really strange reaction to it. And I thought somebody should know. We got the shot on Saturday afternoon and all I wanted to do, when I came home, I felt like I'm just going to lie down for couple of hours cause I don't feel quite right. I basically don't remember much about the next two days. I ran a high fever. I didn't remember what was going on. I had these moments where I remember seeing my daughters, hear my husband. And they would talk to me but I had lot of trouble focusing on what they were saying and I just basically go back to sleep again. My husband says, if they tried to ask me something, I would just say 'I don't know'. And lay back down again. And it would be difficult for you to understand, that would be incredibly unusual for me. I worked in health care for a long time 36 to 38 years. I wouldn't being saying I don't know. I would be questioning to me what was happening to me? My husband says I didn't take medicines. Apparently I refused to take medicines of any kind. So I'm 69 and I have some autoimmune diseases (Intent: Medical history). So I usually take medicines at night and in morning. And I didn't do that for 2 days. I apparently said no and go back to sleep again. By Tuesday I was little more cognizant about things were going around me. And my daughter caught me into picking the medicines. I felt bad for a week, I felt like the worst case of Flu I ever had. I ached all over, I slept a lot and didn't do much of anything for a whole week. That was very unusual for me."The she added :"Correct. I do. I am trying to figure out whether I should take the 2nd shot? I don't know what happened to me? It was not good. They were trying to bring the temperature down with cold cloth and ice. Of course they did get it down. But it was not a good reaction. I felt like I was dying." 2st shot of COVID-19 Vaccine: 17Apr202.  The patient underwent lab tests and procedures which included heart scan: unknown results   on (Just making sure I'm heart healthy and I guess that's it ), weight: probably around 220 lbs on unknown date .  No treatment received for the events. Outcome of the events was unknown.