Pregnancy loss; Numerous daily heart flutters; RDW values still abnormal range; Excessive hair loss; Extreme fatigue; Potential nerve damage; Arm tingles/leg tingles; Weakness; Pain; GI bloating/pain; GI bloating/pain; rapid declining iron and ferritin; rapid declining iron and ferritin; abnormal blood work; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 34-year-old female patient (pregnant) received BNT162b2 (BNT162B2), on 06Jun2021 as dose 2, single (Lot number: ew0187) at the age of 33 years for covid-19 immunisation. The patient's relevant medical history included: "Hypothyroidism" (unspecified if ongoing), notes: very stable for over a decade. Date of last menstrual period: May2021. The patient was 2 weeks pregnant at the event onset. Concomitant medication(s) included: SYNTHROID. Vaccination history included: BNT162b2 (Dose Number: 1, Batch/Lot No: ew0186), administration date: 06May2021, when the patient was 33-year-old, for COVID-19 Immunization. The following information was reported: PARAESTHESIA (non-serious) with onset Jul2021, outcome "not recovered", described as "Arm tingles/leg tingles"; ALOPECIA (non-serious) with onset Jul2021, outcome "not recovered", described as "Excessive hair loss"; FATIGUE (non-serious) with onset Jul2021, outcome "not recovered", described as "Extreme fatigue"; GASTROINTESTINAL PAIN (non-serious), ABDOMINAL DISTENSION (non-serious) all with onset Jul2021, outcome "not recovered" and all described as "GI bloating/pain"; CARDIAC FLUTTER (medically significant) with onset Jul2021, outcome "recovered" (Jan2022), described as "Numerous daily heart flutters"; PAIN (non-serious) with onset Jul2021, outcome "not recovered"; NERVE INJURY (non-serious) with onset Jul2021, outcome "not recovered", described as "Potential nerve damage"; ABORTION SPONTANEOUS (medically significant) with onset Jul2021, outcome "not recovered", described as "Pregnancy loss"; RED CELL DISTRIBUTION WIDTH ABNORMAL (medically significant) with onset Jul2021, outcome "not recovered", described as "RDW values still abnormal range"; ASTHENIA (non-serious) with onset Jul2021, outcome "not recovered", described as "Weakness"; BLOOD TEST ABNORMAL (non-serious) with onset Jul2021, outcome "not recovered", described as "abnormal blood work"; BLOOD IRON DECREASED (non-serious), SERUM FERRITIN DECREASED (non-serious) all with onset Jul2021, outcome "not recovered" and all described as "rapid declining iron and ferritin". The events "pregnancy loss", "numerous daily heart flutters", "rdw values still abnormal range", "excessive hair loss", "extreme fatigue", "potential nerve damage", "arm tingles/leg tingles", "weakness", "pain", "gi bloating/pain", "rapid declining iron and ferritin" and "abnormal blood work" required physician office visit. The patient underwent the following laboratory tests and procedures: Blood iron: (Jul2021) declining; Blood test: (Jun2020) Negative, notes: COVID test type=Blood test; (Sep2020) Negative, notes: COVID test type=Blood test; (22Dec2021) Negative, notes: COVID test type post vaccination=Blood test; (Jan2022) Negative, notes: COVID test type post vaccination=Blood test; (Jul2021) Abnormal; Colonoscopy: (unspecified date) Unknown Results; Endoscopy: (unspecified date) Unknown Results; Red cell distribution width: (Jul2021) Abnormal; SARS-CoV-2 test: (Dec2021) Negative, notes: COVID test type post vaccination=Nasal Swab; (Sep2022) Negative, notes: COVID test type post vaccination=Nasal Swab; Serum ferritin: (Jul2021) declining; Ultrasound scan: (unspecified date) Unknown Results. Therapeutic measures were taken as a result of abortion spontaneous, cardiac flutter, red cell distribution width abnormal, alopecia, fatigue, nerve injury, paraesthesia, asthenia, pain, gastrointestinal pain, abdominal distension, blood iron decreased, serum ferritin decreased, blood test abnormal. Clinical courses: Pregnancy Due date was Feb2022. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. Pregnancy loss (didn't know she was pregnant until after 2nd shot), rapid declining iron and ferritin even with supplementation-eventually leading to hematologist suggesting IV iron treatment, abnormal blood work-RDW values still abnormal range even after IV iron, numerous daily heart flutters- no diagnosis but have calmed down 6 months after 2nd dose, excessive hair loss-still experiencing, very extreme fatigue, potential nerve damage- arm tingles/leg tingles, weakness, pain-still waiting to see neurologist to confirm/access for treatment, GI bloating/pain-no other known reason why or findings for cause after endo/colon-detoxed and elevated most symptoms. Treatment included iron infusion, heart sono, endo/colonoscopy. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient has been tested for COVID-19. No known allergies.  No follow-up attempts are possible. No further information is expected.