Bradycardia (EKG on 10Nov22); arrhythmia (EKG on 10Nov22); Hair loss (over half on head and body); Longer menstrual cycles; Severe gastrointestinal pain; Fatigue; Dizziness; Pink hands,reddish Lacey looking arms; Low blood pressure; 20+ pound weight loss; Brain fog; Inability tophysically attend high school/poor quality of life; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  An 18-year-old female patient (not pregnant) received BNT162b2 (BNT162B2), on 17Dec2021 as dose 3 (booster), single (Lot number: FJ1611) at the age of 17 years, in left arm for covid-19 immunisation. The patient's relevant medical history included: "PANDAS" (unspecified if ongoing), notes: PANDAS. The patient's concomitant medications were not reported. Past drug history included: Nsaids, reaction(s): "known allergies: NSAIDs". Vaccination history included: BNT162b2 (Dose Number: 2 Batch/Lot No: EW0187 Location of injection: Arm Left), administration date: 18Jun2021, when the patient was 17-year-old, for COVID-19 Immunization; BNT162b2 (Dose Number: 1 Batch/Lot No: EW0183 Location of injection: Arm Left), administration date: 26May2021, when the patient was 17-year-old, for COVID-19 Immunization. The following information was reported: WEIGHT DECREASED (disability) with onset 16Jun2022, outcome "not recovered", described as "20+ pound weight loss"; FEELING ABNORMAL (disability) with onset 16Jun2022, outcome "not recovered", described as "Brain fog"; DIZZINESS (disability) with onset 16Jun2022, outcome "not recovered"; FATIGUE (disability) with onset 16Jun2022, outcome "not recovered"; ALOPECIA (disability) with onset 16Jun2022, outcome "not recovered", described as "Hair loss (over half on head and body)"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (disability) with onset 16Jun2022, outcome "not recovered", described as "Inability to physically attend high school/poor quality of life"; OLIGOMENORRHOEA (disability) with onset 16Jun2022, outcome "not recovered", described as "Longer menstrual cycles"; HYPOTENSION (disability) with onset 16Jun2022, outcome "not recovered", described as "Low blood pressure"; SKIN DISCOLOURATION (disability) with onset 16Jun2022, outcome "not recovered", described as "Pink hands,reddish Lacey looking arms"; GASTROINTESTINAL PAIN (disability) with onset 16Jun2022, outcome "not recovered", described as "Severe gastrointestinal pain"; BRADYCARDIA (disability, medically significant) with onset 10Nov2022, outcome "not recovered", described as "Bradycardia (EKG on 10Nov22)"; ARRHYTHMIA (disability, medically significant) with onset 10Nov2022, outcome "not recovered", described as "arrhythmia (EKG on 10Nov22)". The patient underwent the following laboratory tests and procedures: Blood pressure measurement: (16Jun2022) Low; Electrocardiogram: (10Nov2022) Bradycardia, notes: Bradycardia; (10Nov2022) Arrhythmia, notes: Arrhythmia; SARS-CoV-2 test: (07Jul2021) Negative; Weight: (16Jun2022) 20+ pound weight loss. Therapeutic measures were not taken as a result of bradycardia, arrhythmia, alopecia, oligomenorrhoea, gastrointestinal pain, fatigue, dizziness, skin discolouration, hypotension, weight decreased, feeling abnormal, loss of personal independence in daily activities.  Clinical course: Following the vaccine, I have had the following symptoms: hair loss (over half on head and body), longer menstrual cycles, severe gastrointestinal pain that gastroenterologists and 2 endoscopies can't explain, fatigue, dizziness, pink hands, reddish Lacey looking arms, low blood pressure, 20+ pound weight loss, bradycardia (EKG on 10Nov22), arrhythmia (EKG on 10Nov22), brain fog, inability to physically attend high school-meets with teacher remotely due to health issues, Poor quality of life. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had been tested for COVID-19.  No follow-up attempts are possible. No further information is expected.