feeling really bad; severe migraine; could not eat or drink anything; could not eat or drink anything. Every time I tried, I would get sick; was home in bed for 4 days; throwing up; nausea; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 62 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm right, administration date 24Mar2021 03:45 (Lot number: EP7534) at the age of 62 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Allergies: Had an allergic reaction to contrast dye" (unspecified if ongoing), notes: Had an allergic reaction to contrast dye; "migraine" (unspecified if ongoing), notes: she usually gets migraines once a year so she knows how it feels and has medication for it. Concomitant medication(s) included: VITAMINS C; ZINC. Vaccination history included: Bnt162b2 (Dose Number: 1, Batch/Lot No: EN6202, Location of injection: Arm Right, Vaccine Administration Time: 03:45 AM, no reaction to the first dose of Pfizer BioNTech Covid vaccine aside from the usual soreness of her arm), administration date: 03Mar2021, when the patient was 62 years old, for Covid-19 immunization, reaction(s): "soreness of her arm".  The following information was reported: FEELING ABNORMAL (non-serious) with onset 25Mar2021 07:00, outcome "recovered" (2021), described as "feeling really bad"; MIGRAINE (non-serious) with onset 25Mar2021 07:00, outcome "recovered" (2021), described as "severe migraine"; DECREASED APPETITE (non-serious) with onset 25Mar2021 07:00, outcome "recovered" (2021), described as "could not eat or drink anything"; ILLNESS (non-serious) with onset 25Mar2021 07:00, outcome "recovered" (2021), described as "could not eat or drink anything. Every time I tried, I would get sick"; BEDRIDDEN (non-serious) with onset 25Mar2021 07:00, outcome "recovered" (2021), described as "was home in bed for 4 days"; VOMITING (non-serious) with onset 24Mar2021, outcome "recovering", described as "throwing up"; NAUSEA (non-serious) with onset Mar2021, outcome "unknown", described as "nausea". The events "feeling really bad", "severe migraine", "could not eat or drink anything", "could not eat or drink anything. every time i tried, i would get sick" and "was home in bed for 4 days" were evaluated at the physician office visit. Therapeutic measures were not taken as a result of feeling abnormal, migraine, illness, bedridden. Therapeutic measures were taken as a result of decreased appetite, vomiting, nausea.  Additional information: The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. The patient reported that after she received the 2nd shot, within 12 hours, she started feeling really bad. She developed a severe migraine and could not eat or drink anything. Every time she tried, she would get sick. She was home in bed for 4 days. Her Doctor prescribed her an anti-nausea pill so she could at least drink. She have not had my booster shot yet and would really like to get it. She just don't want to have the same reaction but she felt it was important to get it. She have never been as sick as she was after that 2nd dose. She would love some guidance on what she should do. Prior to vaccination, the patient not diagnosed with COVID-19 and since the vaccination, the patient not been tested for COVID-19. She also experienced nausea and vomiting. She could not keep anything down and her doctor prescribed her Granisetron and it helped. She wants to know if she should get the booster dose of Pfizer (Cause she does not know if it was an allergic reaction) or cause of her side effects she has to get other brands as booster such as Moderna She has not received the Flu vaccine yet.   Follow-up attempts are completed. No further information is expected.