Really sick; She had exhaustion, extreme fatigue; body aches; muscle aches all over her body; chills; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP).  A 68 year-old female patient received bnt162b2 (BNT162B2), administered in arm, administration date 26Feb2021 07:30 (Lot number: EL9266, Expiration Date: 31May2021) at the age of 68 years as single dose for covid-19 immunisation. Relevant medical history included: "COVID", start date: Nov2020, stop date: Nov2020, notes: Verbatim: COVID. The patient's concomitant medications were not reported. The following information was reported: ILLNESS (non-serious) with onset 27Feb2021, outcome "recovering", described as "Really sick"; FATIGUE (non-serious) with onset 27Feb2021, outcome "recovering", described as "She had exhaustion, extreme fatigue "; PAIN (non-serious) with onset 27Feb2021, outcome "recovering", described as "body aches"; MYALGIA (non-serious) with onset 27Feb2021, outcome "recovering", described as "muscle aches all over her body"; CHILLS (non-serious) with onset 27Feb2021, outcome "recovering", described as "chills". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: At the time of report, other products, and investigation reassessment reported as unknown. Caller reported patient said she had COVID in Nov2020, but it was past the 90 days when she got the vaccine; where on the website it said have you had COVID in the last 90 days and she had not. Initially during report caller had reported patient was administered vaccine on Thursday, 25Feb2021, but then clarified it was not on Thursday, 25Feb2021, that she was administered the Pfizer-BioNTech COVID-19 Vaccine on Friday, 26Feb2021 because the patient was part of a group of 4 people, caller included, that went to get their first dose of Pfizer-BioNTech COVID-19 Vaccine on 26Feb2021. Time administered is approximate; they had an appointment at 07:55 but got there earlier and got put through quick; he himself had already been administered his vaccine and left before she had hers administered. Her dose was probably at about 07:30. To his awareness she has not had any relevant testing/investigations performed, has not been to the doctor about this. Patient was administered her first dose of Pfizer-BioNTech COVID-19 Vaccine on Friday, 26Feb2021. The patient got really sick and is almost scared to get the second dose of the Pfizer-BioNTech COVID-19 Vaccine. Caller reported that the media and most people are saying that you get sick with the second dose of the vaccine; so patient's concern is if she got this sick with the first dose, will the second dose be worse or what should she expect. Really sick: Onset time unknown other than the morning of 27Feb2021 when she woke up, the day after she was administered the vaccine. She was really sick 27Feb2021, and 28Feb2021; She felt a little better on Monday, 01Mar2021 and they thought she was coming out of it; but then she felt really sick again on Tuesday, 02Mar2021. Event has been improved since 03Mar2021. Event further described as patient was really down; on the website where it says like 4-6 different things as side effects, she had pretty much all of those except for a fever which she did not check to see if she had. She had exhaustion; extreme fatigue and body aches; muscle aches all over her body; chills; she was in bed for like 2 days straight and she does not usually ever get sick like that. He initially reported onset of events on 26Feb2021, but then clarified that event onset was 27Feb2021 because he called his friend and the patient after they got the Pfizer-BioNTech COVID-19 Vaccine before they went to bed that night on 26Feb2021, and they were ok then. It was not until patient woke up the following morning that she became really sick.  No follow-up attempts are possible. No further information is expected.