worsening of her migraines; feeling like she had the flu; can not eat; Migraine worsened: includes normal dry heaves, and diarrhea associated with migraines, but they have worsened; Migraine worsened: includes normal dry heaves, and diarrhea associated with migraines, but they have worsened; Migraine worsened: includes normal dry heaves, and diarrhea associated with migraines, but they have worsened; Felt lousy, doesn't feel good: described as body aches, had no energy, was depressed, felt like the flu, not eating well; Felt lousy, doesn't feel good: described as body aches, had no energy, was depressed, felt like the flu, not eating well; Felt lousy, doesn't feel good: described as body aches, had no energy, was depressed, felt like the flu, not eating well; Felt lousy, doesn't feel good: described as body aches, had no energy, was depressed, felt like the flu, not eating well; her weight as probably 265 pounds before the vaccine, and now she is down to 250 pounds afterwards; nauseas; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program. The reporter is the patient.  A 66 year-old female patient received bnt162b2 (BNT162B2), administration date 23Apr2021 10:30 (Batch/Lot number: unknown) at the age of 66 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Blood clot" (ongoing), notes: about 10 years ago; "Stroke", start date: Aug2016 (ongoing), notes: the seizures also corelate with the migraines. Caller states probably 2008 or 2010.; "Seizures" (ongoing); "Migraine" (ongoing), notes: Caller states probably 2008 or 2010.; "Hypertension" (ongoing), notes: Caller states about 2008 or 2010. Concomitant medication(s) included: PLAVIX taken for thrombosis; VERAPAMIL (MIVAL) taken for migraine (ongoing); TOPAMAX taken for migraine (ongoing); AIMOVIG taken for migraine (ongoing); SUMATRIPTAN taken for migraine, start date: 2010 (ongoing); UBRELVY, start date: 2020 (ongoing). Vaccination history included: Bnt162b2 (Date: 26Mar2021, start time: 10:00, site: right upper arm, Batch/lot number:ER8735), administration date: 26Mar2021, for COVID-19 Immunization. The following information was reported: MIGRAINE (non-serious), outcome "unknown", described as "worsening of her migraines"; INFLUENZA LIKE ILLNESS (non-serious), outcome "unknown", described as "feeling like she had the flu"; EATING DISORDER (non-serious), outcome "unknown", described as "can not eat"; MIGRAINE (non-serious), RETCHING (non-serious), DIARRHOEA (non-serious), outcome "unknown" and all described as "Migraine worsened: includes normal dry heaves, and diarrhea associated with migraines, but they have worsened"; MALAISE (non-serious), PAIN (non-serious), ASTHENIA (non-serious), DEPRESSION (non-serious), outcome "unknown" and all described as "Felt lousy, doesn't feel good: described as body aches, had no energy, was depressed, felt like the flu, not eating well"; WEIGHT DECREASED (non-serious), outcome "unknown", described as "her weight as probably 265 pounds before the vaccine, and now she is down to 250 pounds afterwards"; NAUSEA (non-serious), outcome "unknown", described as "nauseas".  Additional information: She had seen her migraine doctor since 2008, but he has passed away. The provider she was now seeing for the neurology practice. She was on maintenance medications. she had a stroke and seizures. She was on other medications. She spoke to her neurology nurse practitioner on 26Apr2021, by telecommunication at 1 pm, and told her that she had gotten all her Covid vaccines. She did not have any issues, but that she had a migraine. Normally, she sees the provider every 3 months. Because her migraines are bad, it was time to do another MRI. They usually do an MRI once a year. The provider wanted to do another MRI in 3 months, at her next appointment. No additional vaccines administered on same date of the Pfizer suspect. Adverse event did not require a visit to Emergency Room/Physician Office. No vaccinations (within 4 weeks) prior to the first administration date of the suspect vaccine. No Adverse events following prior vaccinations. No relevant family medical history to adverse event. No relevant tests done. Description of Product Complaint: While reporting an adverse event for the Pfizer Covid vaccine, the following is reported: Her normal migraine medications have not touched her, clarified, they have not been effective, for her migraines. The migraine medications as follows: Aimovig: caller reports she takes it once a month on the 15th, to block migraines. It had not touched her migraines. The following identifiers reported: GTIN 00355513843010, Lot: 1121785A, expiration: Nov2021.Dose: 140mg injection once a month. Sumatriptan: GTIN00347335276411, Lot: JKX1600A, Oct2021. Dose: 6mg/0.5ml injection, up to 9 times a month. Ubrelvy: SN 100000431851, Lot: 1741136, expiration: Nov2022. Dose: 100 mg tablet by mouth once a day, up to 9 doses a month. They work temporarily then the migraine comes back.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.