Last night didnt take it because nauseous, didnt want to be more nauseous; her left arm is hurting of course where they injected it; she is achy, muscles hurt, arms, joints; she is achy, muscles hurt, arms, joints; her body feels like it weighs 2 tons; I am totally/very fatigued; my balance is off; Dizzy; muscle aches; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 75-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 16Feb2023 as dose 5 (booster), single (Lot number: FW1333) at the age of 75 years, in left arm for covid-19 immunisation. The patient's relevant medical history included: "Cirrhosis From Hepatitis C." (unspecified if ongoing); "Hepatitis C." (unspecified if ongoing), notes: Hepatitis C She got this from a hospital 40 years ago; "Car accident" (unspecified if ongoing), notes: She was in a car accident; "Encephalopathy" (ongoing). Concomitant medication(s) included: XIFAXAN taken for encephalopathy, start date: 2020 (ongoing); ZINC; GENERLAC taken for hepatic cirrhosis; LACTULOSE taken for hepatic cirrhosis. Vaccination history included: BNT162b2 (Dose: 01, Lot: EN6199, NDC/Expiry: Unknown, this is not on the CDC vaccine record card. Sore arm: From date: 06Mar2021, Stop date: Unknown other than a couple of days later. , Outcome: Recovered completely.), administration date: 06Mar2021, when the patient was 73-year-old, for COVID-19 Immunization, reaction(s): "just a sore arm"; BNT162b2 (Dose: 02, Lot: ER8733, NDC/Expiry: Unknown, this is not on the CDC vaccine record card., Administered at 14:00., Sore arm: From date: 30Mar2021, Stop date: Unknown other than a couple of days later. , Outcome: Recovered completely.), administration date: 30Mar2021, when the patient was 73-year-old, for COVID-19 Immunization, reaction(s): "just a sore arm"; BNT162b2 (Dose: 03, Lot: FH8020, NDC/Expiry: Unknown, this is not on the CDC vaccine record card., Administering facility name on CDC vaccine record card: Withheld, Sore arm: From date: 22Oct2021, Stop date: Unknown other than a couple of days later. , Outcome: Recovered completely), administration date: 22Oct2021, when the patient was 74-year-old, for COVID-19 Immunization, reaction(s): "just a sore arm"; BNT162b2 (Dose: 04, Lot: FJ4991, NDC/Expiry: Unknown, this is not on the CDC vaccine record card., Administering facility name on CDC vaccine record card: Withheld, Sore arm: From date: 06May2022, Stop date: Unknown other than a couple of days later. , Outcome: Recovered completely.), administration date: 06May2022, when the patient was 74-year-old, for COVID-19 Immunization, reaction(s): "just a sore arm". The following information was reported: MYALGIA (non-serious) with onset 16Feb2023, outcome "recovering", described as "muscle aches"; DIZZINESS (non-serious) with onset 17Feb2023, outcome "recovering", described as "Dizzy"; FATIGUE (non-serious) with onset 17Feb2023, outcome "recovering", described as "I am totally/very fatigued"; BALANCE DISORDER (non-serious) with onset 17Feb2023, outcome "recovering", described as "my balance is off"; NAUSEA (non-serious), outcome "unknown", described as "Last night didnt take it because nauseous, didnt want to be more nauseous"; PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "her left arm is hurting of course where they injected it"; PAIN (non-serious), ARTHRALGIA (non-serious), outcome "unknown" and all described as "she is achy, muscles hurt, arms, joints"; DISCOMFORT (non-serious), outcome "unknown", described as "her body feels like it weighs 2 tons". Additional information: The patient called about Pfizer COVID Vaccine Bivalent Booster gray Cap for Adults, she just had it yesterday. The patient has never really had a reaction to any previous doses, just a sore arm. This most recent dose, she felt very fatigued and had muscle aches. The thing that was bothering her the most is that her balance is off. The patient clarified that what bothers her the most is the being very fatigued; not that her balance is off as provided by inbound transfer agent. She clarified statement: She has never really had a reaction to any previous doses, just a sore arm, as historical events of having a sore arm with each of her doses of COVID Pfizer 12 year plus, requires dilution and with COVID Pfizer 12 year plus; not with Pfizer COVID Vaccine Bivalent Booster Gray Cap for Adults. She verified being very fatigued, having muscle aches, her balance is off, and additionally reported being dizzy.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202300074233 same patient, different dose and event;US-PFIZER INC-202300074231 same patient, different dose and event;US-PFIZER INC-202300074232 same patient, different dose and event;US-PFIZER INC-202300074234 same patient, different dose and event;