eat very lightly (crackers, water, ginger ale); vomiting; extreme chills; no energy/had very little energy; confined to bed and only; very tired; This was my 5th Pfizer shot; This was my 5th Pfizer shot; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 66-year-old female patient (not pregnant) received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 09Sep2022 at 13:00 as dose 5 (booster), single (Lot number: GH9694) at the age of 66 years, in left arm for covid-19 immunisation. The patient had no relevant medical history. Concomitant medication(s) included: ROSUVASTATIN. Vaccination history included: Bnt162b2 (Dose 1, extreme chills), for COVID-19 immunization, reaction(s): "extreme chills"; Bnt162b2 (Dose 1), for COVID-19 immunization, reaction(s): "vomiting"; Bnt162b2 (Dose 1, had no energy), for COVID-19 immunization, reaction(s): "had no energy"; Bnt162b2 (Dose 1, confined to bed and only slept), for COVID-19 immunization, reaction(s): "confined to bed and only slept"; Bnt162b2 (Dose 1, could eat very lightly), for COVID-19 immunization, reaction(s): "could eat very lightly"; Bnt162b2 (Dose 1, very tired), for COVID-19 immunization, reaction(s): "very tired"; Bnt162b2 (Dose 2, extreme chills), for COVID-19 immunization, reaction(s): "extreme chills"; Bnt162b2 (Dose 2), for COVID-19 immunization, reaction(s): "vomiting"; Bnt162b2 (Dose 2, had no energy), for COVID-19 immunization, reaction(s): "had no energy"; Bnt162b2 (Dose 2, confined to bed and only slept), for COVID-19 immunization, reaction(s): "confined to bed and only slept"; Bnt162b2 (Dose 2, could eat very lightly), for COVID-19 immunization, reaction(s): "could eat very lightly"; Bnt162b2 (Dose 2, very tired), for COVID-19 immunization, reaction(s): "very tired"; Bnt162b2 (Dose 3, extreme chills), for COVID-19 immunization, reaction(s): "extreme chills"; Bnt162b2 (Dose 4, extreme chills), for COVID-19 immunization, reaction(s): "extreme chills"; Bnt162b2 (Dose 3), for COVID-19 immunization, reaction(s): "vomiting"; Bnt162b2 (Dose 4), for COVID-19 immunization, reaction(s): "vomiting"; Bnt162b2 (Dose 3, had no energy), for COVID-19 immunization, reaction(s): "had no energy"; Bnt162b2 (Dose 4, had no energy), for COVID-19 immunization, reaction(s): "had no energy"; Bnt162b2 (Dose 3, confined to bed and only slept), for COVID-19 immunization, reaction(s): "confined to bed and only slept"; Bnt162b2 (Dose 4, confined to bed and only slept), for COVID-19 immunization, reaction(s): "confined to bed and only slept"; Bnt162b2 (Dose 3, could eat very lightly), for COVID-19 immunization, reaction(s): "could eat very lightly"; Bnt162b2 (Dose 4, could eat very lightly), for COVID-19 immunization, reaction(s): "could eat very lightly"; Bnt162b2 (Dose 3, very tired), for COVID-19 immunization, reaction(s): "very tired"; Bnt162b2 (Dose 4, very tired), for COVID-19 immunization, reaction(s): "very tired". The following information was reported: OFF LABEL USE (non-serious), IMMUNISATION (non-serious) all with onset 09Sep2022 at 13:00, outcome "unknown" and all described as "This was my 5th Pfizer shot"; BED REST (non-serious) with onset 10Sep2022, outcome "recovered" (Sep2022), described as "confined to bed and only"; ASTHENIA (non-serious) with onset 10Sep2022, outcome "recovered" (Sep2022), described as "no energy/had very little energy"; FATIGUE (non-serious) with onset 10Sep2022, outcome "recovered" (Sep2022), described as "very tired"; CHILLS (non-serious) with onset 10Sep2022 at 04:00, outcome "recovered" (Sep2022), described as "extreme chills"; VOMITING (non-serious) with onset 10Sep2022 at 09:00, outcome "recovered" (Sep2022); DECREASED APPETITE (non-serious) with onset 11Sep2022, outcome "recovered" (Sep2022), described as "eat very lightly (crackers, water, ginger ale)". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of chills, asthenia, vomiting, bed rest, decreased appetite, fatigue.  Additional information: The seriousness was reported as non-serious. No other vaccine in four weeks. Other medications in two weeks included New Chapter 55+ multivitamin. About 15 hours after the shot had extreme chills for about 2 hours, starting adverse event extreme chills for about 2 hours, starting at 4 a.m. Beginning at about 9:00 vomiting began. The patient could not even take a sip of water without vomiting for the next 36 hours. During this time the patient had no energy and was confined to bed and only slept. Beginning about 48 hours after the shot the patient could eat very lightly (crackers, water, ginger ale) and still had very little energy. The patient was feeling more normal about 4 days after the shot, but still very tired. This was my 5th Pfizer shot and had the exact same reaction after all 5 doses. No prior covid vaccination was reported. Covid tested post vaccination was reported.