Finished radiation that caused an infection; Lost about 5 pounds; I was not eating and dehydrated; Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer COVID Vaccines; Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer Covid Vaccines; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team, Program ID. The reporter is the patient.  A 60-year-old female patient received BNT162b2 (BNT162B2), on 22Apr2022 as dose 3 (booster), single (Lot number: FK9893) at the age of 60 years, in left arm for covid-19 immunisation. The patient's relevant medical history included: "Breast cancer", start date: 09Sep2009 (unspecified if ongoing). Concomitant medication(s) included: ARIMIDEX. Vaccination history included: BNT162b2 (Dose:01, Lot Number: EW0183; Administered in the caller's left arm; NDC and Expiry Date are unknown.), administration date: 27May2021, when the patient was 59-year-old, for COVID-19 Immunization, reaction(s): "Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer COVID Vaccines", "Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer COVID Vaccines"; BNT162b2 (Dose:02, Lot Number: EW0183, caller verifies that it is the same Lot Number as her first dose; Administered in the caller's left arm; NDC and Expiry Date are unknown.), administration date: 23Jun2021, when the patient was 59-year-old, for COVID-19 Immunization, reaction(s): "Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer COVID Vaccines", "Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer COVID Vaccines". The following information was reported: PAIN (non-serious) with onset 2022, outcome "unknown", described as "Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer COVID Vaccines"; FATIGUE (non-serious) with onset 2022, outcome "unknown", described as "Body aches and fatigue/these are the same symptoms that she had with her previous doses of the Pfizer Covid Vaccines"; DEHYDRATION (non-serious) with onset 2022, outcome "unknown", described as "I was not eating and dehydrated"; WEIGHT DECREASED (non-serious) with onset 2022, outcome "unknown", described as "Lost about 5 pounds"; INFECTION (non-serious) with onset Aug2022, outcome "unknown", described as "Finished radiation that caused an infection". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of infection. Additional information: Caller states that prior to this dose of the vaccine she had just finished radiation that caused an infection. Caller states that due to that infection she had stopped eating and had lost about 5 pounds. Caller states that about three weeks prior to receiving the Bivalent COVID Booster Vaccine she had radiation to her spine and an infection. States that she was prescribed an unspecified antibiotic, unspecified anti-nausea medication, and an unspecified throat numbing medication related to the radiation and subsequent infection. Caller further stated she received her booster dose with the Pfizer BioNTech COVID-19 vaccine bivalent on 16Sep2022. She mentioned "I was radiated and gotten an infection, it did knocked me for 3 weeks, I was not eating and dehydrated, I just want to be gentle with my body. My doctor told me to please get the new Pfizer Booster Dose, and I just wanted to know the protocol. Caller mentioned that the only other medication she has been on for 1 month now is Arimidex." Caller also stated: "I have had a complete blood count on like 1 month or 2 ago. Is that too far way or should I get another one prior to starting?"; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201173720 same patient, different vaccine(different dose), different event;