Has a hx of fainting; She felt dizzy; She felt  funny; Her initial BP was 108/80. Her BP increased up to 150/94-160/92.; She became diaphorectic; She became pale; Left sided chest pain with radiation to the back; Left sided chest pain with radiation to the back; She felt some difficulty to take a full breath; This is a spontaneous report from a contactable other HCP. A 51-years-old non-pregnant female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection), dose 3 intramuscular, administered in Arm Left on 15Oct2021 (at the age of 51 years) (Batch/Lot Number: EW0217) as dose 3 (booster), single for COVID-19 immunisation at Workplace clinic. Medical history included hypertension, anxiety and allergies to penicillin from an unknown date and unknown if ongoing. Concomitant medications included olive oil taken for an unspecified indication, start and stop date were not reported. Prior to the vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19. Historical vaccine included bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection), dose 1 intramuscular, administered in Arm Left on 03Feb2021 (at the age of 50 years) (Batch/Lot Number: EL3247) as Dose 1, single and dose 2 intramuscular, administered in Arm Left on 24Feb2021 (at the age of 50 years) (Batch/Lot Number: EL3247) as dose 2, single for COVID-19 Immunization. Patient was very anxious about the booster vaccine. On 15Oct2021 the patient experienced, had a hx of fainting. Consented to the vaccine. Within 1 minute after receiving the vaccine she said she felt dizzy and funny, put her head between her legs (in sitting position), then stated she felt like she was going to faint and was quickly walked to the exam bed to lay down. Her initial BP was 108/80. Her usual BP was 150-160-s systolic. She became diaphoretic and pale. Cool cloths applied to her head. After 15 minutes we began to try and elevate her head to 45 degrees to drink some water. She could not tolerate the elevation without becoming dizzy again and we had to lie supine again. Her BP increased up to 150/94-160/92. After 20 minutes she began to complain of left sided chest pain with radiation to the back that she rated at a "8/10". She felt some difficulty to take a full breath. Nasal O2 4 L applied without help to the chest pain. Ambulance called to transfer her to withheld. In Oct2021 the patient underwent lab tests and procedures which included blood pressure measurement: 108/80, blood pressure measurement: 150-160-s systolic, blood pressure measurement: 150/94, blood pressure measurement: 160/92, electrocardiogram: unknown, oxygen consumption: unknown, radiotherapy: 8/10. The events resulted in visit to Emergency room visit and Physician Office Visit. The patient received the treatment for the adverse events with EKG, IV, BP medication, oxygen. The clinical outcome of the events was unknown at the time of report.  No follow-up attempts are possible. No further information is expected.; Sender's Comments: Based on the information provided  and plausible temporal association, the causality between BNT162B2 and Syncope, Dizziness, Feeling Abnormal, Blood pressure abnormal, Hyperhidrosis, Pallor, Chest pain, Back pain, Dyspnoea  cannot be completely excluded.  The impact of this report on the benefit/risk profile of the Pfizer product is evaluated as part of Pfizer procedures for safety evaluation, including the review and analysis of aggregate data for adverse events. Any safety concern identified as part of this review, as well as any appropriate action in response, will be promptly notified to regulatory authorities, Ethics Committees, and Investigators, as appropriate.