Weak; Vomiting; violent retching; she was so sick/ deathy ill; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP), Program ID: (159558). The reporter is the patient.  A 74-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 01Nov2022 as dose 5 (booster), single (Lot number: GJ3277) at the age of 74 years, in right arm for covid-19 immunisation. The patient's relevant medical history included: "Heart condition" (unspecified if ongoing); "plaque" (unspecified if ongoing); "she has a pacemaker" (unspecified if ongoing); "Covid" (unspecified if ongoing), notes: COVID in the very beginning, but then she got all her vaccines. Concomitant medication(s) included: ELIQUIS taken for cardiac disorder; LOSARTAN taken for cardiac disorder; SYNTHROID taken for cardiac disorder; ATORVASTATIN taken for plaque (she been taking this for years as she had a pacemaker). Vaccination history included: BNT162b2 (Dose: 1, Lot: EL9265, Dose: dose injection to right arm), administration date: 07Feb2021, when the patient was 72-year-old, for Covid-19 Immunization, reaction(s): "achy", "Chills", "Fever"; BNT162b2 (Dose: 2, Lot: EN6201, Dose: dose injection to right arm), administration date: 28Feb2021, when the patient was 72-year-old, for Covid-19 Immunization, reaction(s): "achy", "Chills", "violently threw up", "Fever"; BNT162b2 (Dose: 3, Lot: FF2589, Dose: dose injection to right arm), administration date: 11Oct2021, when the patient was 73-year-old, for Covid-19 immunization, reaction(s): "she violently threw up"; BNT162b2 (Dose: 4, Lot: FP4554, Dose: dose injection to right arm, The second to last dose she violently threw up), administration date: 10Jun2022, when the patient was 74-year-old, for Covid-19 immunization, reaction(s): "Vomiting", "Violent retching"; Flu vaccine (She does not get ill from the flu vaccine.), for Immunization. The patient reported that she had COVID in the very beginning, but then she got all her vaccines. She just had the last Pfizer Covid-19 Vaccine, Bivalent booster on 01Nov2022 and experienced vomiting. She was close to going to the hospital because she was so sick. If she didn't have it twice, she would think maybe she had a bug, but it has happened with the last 2 vaccines. They used to tell her in the beginning, the first couple she had the chills and the fever, but she did not have a fever on 03Nov2022 and did not have chills. But she did have extreme vomiting and just talking about this was making her sick. She needed Zofran or something because of how deathly ill she was. She did not get ill from the flu vaccine. With the last 2 doses, she had onset of violent retching, vomiting about 8-10 hours after administration that lasted for almost 24 hours. On 04Nov2022 she was so weak, she understood part of it, but she did not know anyone else who throws up. She did not know if this was an allergic reaction to the product or if she can do this again. Since Tuesday, at the time of report she was finally back in the real world. She verified that there were no relevant other medical conditions to report. She walked, drives, does her own house, lives alone, watches grandbabies. She was as active as she can be. There have been no relevant treatments or medical interventions to report. Outcome of the events was unknown.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201279869 Same patient, different dose, different AE;US-PFIZER INC-202201279870 Same patient, different dose, different AE;US-PFIZER INC-202201286340 Same patient, different dose, different AE;