4 days of feeling like she was going to die; fever; chills; shakes; nausea; body aches/it was like a truck hit her; got really really sick; losing her hair; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  An 83-year-old female patient received BNT162b2 (BNT162B2), on 13Jan2021 as dose 1, single (Lot number: EL0I42 or EL0L42), in arm, on 04Feb2021 as dose 2, single (Lot number: EM9810), in arm, on 30Sep2021 as dose 3 (booster), single (Lot number: 30135BA), in arm and on 29Apr2022 at 17:00 as dose 4 (booster), single (Lot number: FK9893) at the age of 83 years, in left arm for covid-19 immunisation. The patient's relevant medical history included: "Bronchitis", start date: Feb2022 (unspecified if ongoing); "High blood pressure" (unspecified if ongoing), notes: diagnosed years ago; "Diabetes" (unspecified if ongoing), notes: she was prediabetic for a long time and now she is on medication for this for the last 6 months. The patient took concomitant medications. Vaccination history included: Flu vaccine, for Immunization, reaction(s): "sore arm". The following information was reported: ALOPECIA (non-serious) with onset Feb2022, outcome "recovering", described as "losing her hair"; ANXIETY (non-serious), outcome "recovered", described as "4 days of feeling like she was going to die"; PYREXIA (non-serious), outcome "recovered", described as "fever"; CHILLS (non-serious), outcome "recovered"; TREMOR (non-serious), outcome "recovered", described as "shakes"; NAUSEA (non-serious), outcome "recovered"; PAIN (non-serious), outcome "recovered", described as "body aches/it was like a Mack truck hit her"; ILLNESS (non-serious), outcome "recovered", described as "got really really sick". The event "losing her hair" required physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of illness.  Clinical course: The patient seeking information if hair loss had been reported as a side effect of the Pfizer Covid 19 vaccine, She has had a total of 4 doses. Vaccination facility type was Pharmacy/Drug Store. Vaccine was not administered at private Facility. Prior vaccinations (within 4 weeks) was reported as none. Additional vaccines administered on same date of the pfizer suspect was reported as none. She experienced severe hair loss in Mar2022 and Apr2022 and now starting to come back and get better. She relays that her dermatologist did not think it was related to the vaccine but relayed to her being sick with bronchitis recently before the hair loss began. She had her last booster on 29Apr2022 so she wanted to ensure the hair loss wasn't associated with the vaccine and she wasn't going to lose hair again.Patient stated that each time she had a vaccine she had the same thing. She got really really sick, fever, chills, shakes, nausea, and body aches, it was like a truck hit her. Each time it was the same exact reaction. She was told by the person that administered the injection not to take Advil and to only take Tylenol. She did and by the 2nd day she was so sick she did take Advil about 36 hours after this vaccine with the last 3 vaccines she just dealt with it. She had many other vaccines and had no reaction besides her arm would hurt and that was it. States a lot of people she knows had theirs but hers was 4 days of feeling like she was going to die. States she got her last booster on 29Apr2022. Patient used to be 5 foot 2. Patient stated the Tylenol did nothing, she was taking 1000mg every 6 hours and it was like she took nothing. She started taking Tylenol as soon as she got home and she got the vaccine on Friday at 5pm and she didn't start feeling sick until 11 hours later. She took the Tylenol when she got home to hopefully keep from getting sick but it didn't help. Stated lot is EL0I42 or EL0L42, the handwriting was terrible. Concomitant medications included just her daily medications. Declined to list. She stated her symptoms lasted 4 days and went away completely. She states her daughter had Covid a year ago this past January and she was vaccinated at that time she was sick and then before she knew it every time she tested it came back negative every time. She started losing her hair and had stomach ache and was sick, nothing severe and went and tested negative it was not Covid and she got better and it took about 10 days. Stated about 6 weeks later she started losing her hair and was noticing it and she went to her doctor and they ran blood tests. Stated during that time she got the 2 original vaccines and the blood test came back with so many antibodies the doctor said it wasn't possible it was just from the vaccine, she must have had Covid at some time. Patient always tested negative, she did the 15 minutes test and the one you wait 24 hours to come back. She had it and never tested positive. Patient did not visit emergency room. Stated she probably should have gone though. She was laying on the couch and didn't know where to put her body she felt so sick. Stated now if they say to get another booster she might not get it but she is afraid not to. Patient stated her hair loss was better, she doesn't think she was losing anymore hair, just the normal amount and she can see new growth. No investigations were reported.   No follow-up attempts are possible. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202200725340 similar report from same reporter