I experienced fatigue; body aches; a feeling of "off balance."; headache; injection site pain; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 39 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm right, administration date 27Oct2021 11:00 (Lot number: FF2590) at the age of 39 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Allergy: seafood" (unspecified if ongoing), notes: Known allergies: all seafood; "Allergy: most fruit, avocados." (unspecified if ongoing), notes: Known allergies: most fruit, avocados.; "Allergy: Food: all nuts" (unspecified if ongoing), notes: Known allergies: Food: all nuts; "Asthma" (unspecified if ongoing), notes: Other medical history: Asthma; "Eczema" (unspecified if ongoing), notes: Other medical history: Eczema; "Contact Dermatitis" (unspecified if ongoing), notes: Other medical history: Contact Dermatitis; "Epstein Barr" (unspecified if ongoing), notes: Other medical history: Epstein Barr; "Mitral Valve Prolapse" (unspecified if ongoing), notes: Other medical history: Mitral Valve Prolapse. Concomitant medication(s) included: SYMBICORT; B12 [CYANOCOBALAMIN]; IBUPROFEN; ZYRTEC [CETIRIZINE HYDROCHLORIDE]; MIRALAX. Vaccination history included: Bnt162b2 (Prev dose brand=Pfizer, Dose Number: 1, Batch/Lot No: EL9262, Location of injection: Arm Right), administration date: 30Jan2021, when the patient was 39 years old, for COVID-19 Immunization, reaction(s): "Right armpit lymph node is a bit swollen and painful", "Right armpit lymph node is a bit swollen and painful"; Bnt162b2 (Prev dose brand=Pfizer, Dose Number: 2, Batch/Lot No: EN6201, Location of injection: Arm Right), administration date: 20Feb2021, when the patient was 39 years old, for COVID-19 Immunization, reaction(s): "Right armpit lymph node is a bit swollen and painful", "Right armpit lymph node is a bit swollen and painful". The following information was reported: FATIGUE (non-serious) with onset 27Oct2021 22:00, outcome "not recovered", described as "I experienced fatigue"; PAIN (non-serious) with onset 27Oct2021 22:00, outcome "not recovered", described as "body aches"; BALANCE DISORDER (non-serious) with onset 27Oct2021 22:00, outcome "not recovered", described as "a feeling of "off balance.""; HEADACHE (non-serious) with onset 27Oct2021 22:00, outcome "not recovered", described as "headache"; VACCINATION SITE PAIN (non-serious) with onset 27Oct2021 22:00, outcome "not recovered", described as "injection site pain". Therapeutic measures were not taken as a result of fatigue, pain, balance disorder, headache, vaccination site pain.  Additional Information: Patient was not pregnant at the time of vaccination. Facility where the most recent COVID-19 vaccine was administered was Pharmacy or Drug Store. The patient did not received any other vaccines within 4 weeks prior to the COVID vaccine. Other medications the patient received within 2 weeks of vaccination was Symbicort inhaler, B12, ibuprofen, zyrtec, miralax. After receiving the booster vaccine, she experienced fatigue, body aches, and a feeling of off balance. She also developed a headache and injection-site pain. She feel as though the injection was given too high and it was too close to her shoulder. The side effect that was different (and ongoing) from the last two vaccine injections was that her right armpit lymph node was a bit swollen and painful. She had the injection in her right arm (dominant arm). The only symptom that is still around is that her armpit lymph node was still swollen/painful. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19. Patient had Known allergies Food: all nuts, all seafood, most fruit, avocados. Patient had other medical history Asthma, Eczema, Contact Dermatitis, Epstein Barr, Mitral Valve Prolapse. Vaccine Facility information was available. Ethnicity information was available. Race information was available.  Follow-up attempts are completed. No further information is expected.