felt hungover and brain dead; room was spinning like she was on the ride Gravitron; felt hungover and foggy; lightheadedness; dizziness like vertigo; dizziness like vertigo; felt hungover and foggy; her arm was hurting really bad; Arm killed her the next day, she couldn't even lift it; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 51 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 23Mar2021 16:30 (Batch/Lot number: unknown) at the age of 51 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Allergies : Dust" (unspecified if ongoing), notes: she does have allergies to dust or whatever.; "she started Menopause, so she gained about 30 pounds, so she is now about 143 pounds." (unspecified if ongoing); "she started Menopause, so she gained about 30 pounds, so she is now about 143 pounds." (unspecified if ongoing); "tummy stuff" (unspecified if ongoing); "seizures" (unspecified if ongoing), notes: Caller states she has a history of seizures. Concomitant medication(s) included: FAMOTIDINE taken for abdominal pain. Vaccination history included: Tetanus (30 years since she had a vaccine. she had a Tetanus and Kenalog.); Kenalog (30 years since she had a vaccine. she had a Tetanus and Kenalog.). The following information was reported: PAIN IN EXTREMITY (non-serious) with onset Mar2021, outcome "recovered" (Mar2021), described as "her arm was hurting really bad"; MOBILITY DECREASED (non-serious) with onset Mar2021, outcome "recovered" (Mar2021), described as "Arm killed her the next day, she couldn't even lift it"; FEELING ABNORMAL (non-serious) with onset 25Mar2021, outcome "recovering", described as "felt hungover and brain dead"; VERTIGO (non-serious) with onset 25Mar2021, outcome "recovered with sequelae" (25Mar2021), described as "room was spinning like she was on the ride Gravitron"; FEELING ABNORMAL (non-serious), HANGOVER (non-serious) all with onset 25Mar2021, outcome "recovering" and all described as "felt hungover and foggy"; DIZZINESS (non-serious) with onset 25Mar2021, outcome "not recovered", described as "lightheadedness"; DIZZINESS (non-serious), VERTIGO (non-serious) all with onset 25Mar2021, outcome "not recovered" and all described as "dizziness like vertigo". The events "her arm was hurting really bad", "arm killed her the next day, she couldn't even lift it", "felt hungover and brain dead", "room was spinning like she was on the ride gravitron", "felt hungover and foggy", "lightheadedness", "dizziness like vertigo", "dizziness like vertigo" and "felt hungover and foggy" were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of pain in extremity, mobility decreased.  Additional Information: Caller states she received the first dose of the Pfizer COVID vaccine on 23Mar2021 around 4:30 pm. Caller states the next day on Wednesday her arm was hurting really bad and it felt as if it was going to fall off. Caller states on Thursday morning she had barely had any sleep she was on the phone with her aunt until 6 am who was in the emergency room all night. Caller states about an hour and half later around 7:30 am which would have been 40 hours after the vaccine she had a spinning of the room episode. Caller compared it to an amusement park ride where the bottom drops out and you are spinning and stuck to the wall. Caller states she tried to go back to sleep and this happened again a few hours later. Caller states when she woke later that day around 3 in the afternoon she felt hungover and brain dead. Caller states she called her pharmacy and an emergency room nurse and they thought that room spinning episode could be contributed to the vaccine. Caller states he stated her hears looked okay and she takes allergy medication. Caller states she experienced dizziness and lightheadedness throughout the day periodically. Caller stated she was going to follow up with a ear nose and throat (ENT) doctor to see if maybe she had vertigo that could potentially be the cause of the spinning but she cant get an appointment until 07Jun2021. Caller would like to know if she should receive the second dose of the vaccine? Caller would like to know if the vaccine was the cause for her symptoms? Caller states she has a history of seizures and would like to know if the second dose could possible cause her to have seizures?  As noted in the Fact Sheet for Recipients, the patient should not get the Pfizer-BioNTech COVID-19 vaccine if she had a severe allergic reaction after a previous dose of the vaccine or if she had a severe allergic reaction to any ingredient of the vaccine. The decision to receive the second dose for any other reason cannot be made by Pfizer. No prior vaccinations within 4 weeks. Caller states she's taken 800 mg Motrin if she ever has any soreness, caller states she doesn't take pain pills. Caller states if they amputated her toe, she would still take 800 of Motrin.Caller states she does not have the card with her at the time of call. Caller verifies she is speaking of and received the Pfizer Covid Vaccine. Caller unsure of LOT, NDC, or Expiry date of Pfizer Covid Vaccine. Caller asks isn't it a standard dose. Caller unsure of dosage.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.