Fatigue; Soreness (Left arm); Hazy or fogginess; Headache; This is a spontaneous report from a contactable consumer received via COVID-19 Adverse Event Self-Reporting Solution. Also received from same consumer (patient) in response to the mail trail regarding the confirmation below mention Query the response. A 25-year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 23Mar2021 14:00 (Lot number: EP6955) at the age of 25 years as dose 2, single for covid-19 immunisation. The patient had no relevant medical history. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (Product: COVID 19, brand: Pfizer, lot number: EL3248, lot unknown: False, administration time: 02:00 PM, Dose number: 1), administration date: 03Mar2021, when the patient was 24 years old, for COVID-19 Immunization. The following information was reported: FATIGUE (non-serious) with onset 24Mar2021 01:00, outcome "recovering", described as "Fatigue"; PAIN IN EXTREMITY (non-serious) with onset 24Mar2021 01:00, outcome "recovering", described as "Soreness (Left arm)"; FEELING ABNORMAL (non-serious) with onset 24Mar2021 01:00, outcome "recovering", described as "Hazy or fogginess"; HEADACHE (non-serious) with onset 24Mar2021 01:00, outcome "recovering", described as "Headache". Therapeutic measures were not taken as a result of fatigue, pain in extremity, feeling abnormal, headache.  Additional information: Serious: No; Seriousness criteria-Results in death: No; Seriousness criteria-Life threatening: No; Seriousness criteria-Caused/prolonged hospitalization: No; Seriousness criteria; Disabling/Incapacitating: No; Seriousness criteria-Congenital anomaly/birth defect: No. Facility where the most recent COVID-19 vaccine was administered was Other. Patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. There were no medications the patient received within 2 weeks of vaccination. COVID vaccine details: brand=Pfizer, lot unknown; False, administration time: 02:00 PM. Adverse event: Soreness (Left arm), Hazy or fogginess, Headache, Fatigue. Prior to vaccination, patient diagnosed with COVID-19 was unknown. Since the vaccination, patient has not been tested for COVID-19. There was no Allergies to medications, food, or other products. Vaccine Facility information available. Ethnicity information is available. Race information is available. Reporter responded as per question asked as Please confirm the date that you became aware of the adverse events in this report as this effects regulatory reporting timelines. This awareness date is the date you became aware of the occurrence of the reported events. If you are the patient in the case, your awareness date would be the date that you became aware you were experiencing the reported events. If you are not the patient in the case, your awareness date would be the date you became aware of the occurrence of the reported events. This awareness date represents the Pfizer receipt date of the report and reflects the earliest date that any Pfizer colleague learned of the adverse event. If you learned of these events from another Pfizer colleague, please provide the date that the first Pfizer colleague became aware of the events reported, as regulatory reporting due dates are calculated based on the first day that a Pfizer colleague became aware of the adverse events. The day I came aware of the adverse events were the morning after my second dose (March 23rd) which was on March 24th when I experienced what I reported.  No follow-up attempts are needed. No further information is expected.