Pfizer Bivalent, Dose Number: 1; Right side swelling; Thyroid felt tight; TSH levels at 6.0; Heart racing Palpitations; High blood pressure; Kidney area felt weird; Electric type zaps; Muscles felt weird; Numbness toes; Loss of appetite; Thirsty; Off balance; Red eyes; Loosing hair; Vibrating feeling In arms and legs; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 52-year-old female patient (not pregnant) received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 05Jan2023 at 16:00 as dose 1, single (Lot number: GJ6742) at the age of 52 years, in right arm for covid-19 immunisation. The patient didn't receive BNT162b2 (BNT162B2). The patient's relevant medical history included: "Hashimotos" (unspecified if ongoing). There were no concomitant medications. The following information was reported: ELECTRIC SHOCK SENSATION (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Electric type zaps"; PALPITATIONS (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Heart racing Palpitations"; HYPERTENSION (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "High blood pressure"; RENAL PAIN (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Kidney area felt weird"; ALOPECIA (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Loosing hair"; DECREASED APPETITE (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Loss of appetite"; MUSCLE DISCOMFORT (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Muscles felt weird"; HYPOAESTHESIA (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Numbness toes"; BALANCE DISORDER (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Off balance"; OCULAR HYPERAEMIA (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Red eyes"; SWELLING (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Right side swelling"; BLOOD THYROID STIMULATING HORMONE INCREASED (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "TSH levels at 6.0"; THIRST (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Thirsty"; THYROID PAIN (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Thyroid felt tight"; PARAESTHESIA (non-serious) with onset 07Jan2023 at 12:00, outcome "recovering", described as "Vibrating feeling In arms and legs"; WRONG PRODUCT ADMINISTERED (non-serious), outcome "unknown", described as "Pfizer Bivalent, Dose Number: 1". The events "right side swelling", "thyroid felt tight", "tsh levels at 6.0", "heart racing palpitations", "high blood pressure", "kidney area felt weird", "electric type zaps", "muscles felt weird", "numbness toes", "loss of appetite", "thirsty", "off balance", "red eyes", "loosing hair" and "vibrating feeling in arms and legs" required physician office visit and emergency room visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of swelling, thyroid pain, blood thyroid stimulating hormone increased, palpitations, hypertension, renal pain, electric shock sensation, muscle discomfort, hypoaesthesia, decreased appetite, thirst, balance disorder, ocular hyperaemia, alopecia, paraesthesia.   The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.