possible seizure; fainting; chills; headache; joint and long bone pain; dizziness; Right abdominal pain; temperature spike at 101; unquenchable thirst; sweating; This is a spontaneous report from a contactable consumer (patient) reported for herself that the 57-year-old female patient received second dose of bnt162b2 (BNT162B2), intramuscular, administered in Arm Right on 08Apr2021 04:00 PM (Lot Number: EW0151) at single dose for covid-19 immunization. Medical history included multiple allergies from an unknown date and unknown if ongoing, asthma from an unknown date and unknown if ongoing, chronic obstructive pulmonary disease from an unknown date and unknown if ongoing, orthostatic hypotension from an unknown date and unknown if ongoing , traumatic lung injury from an unknown date and unknown if ongoing , metaplasia from an unknown date and unknown if ongoing , hiatus hernia from an unknown date and unknown if ongoing , polyp from an unknown date and unknown if ongoing , diverticulum intestinal from an unknown date and unknown if ongoing , exposure to toxic agent from an unknown date and unknown if ongoing. Concomitant medications included pantoprazole taken for an unspecified indication, start and stop date were not reported; famotidine taken for an unspecified indication, start and stop date were not reported; cyclobenzaprine taken for an unspecified indication, start and stop date were not reported; calcium carbonate;soya isoflavones;vitamin d nos taken for an unspecified indication, start and stop date were not reported; ibuprofen;phenylephrine hydrochloride taken for an unspecified indication, start and stop date were not reported. The patient previously took firs dose of bnt162b2 (BNT162B2) intramuscular, administered in Arm Right on 18Mar2021 04:15 PM(Batch/Lot Number: ER2613) at single dose for covid-19 immunisation. The patient experienced possible seizure on 08Apr2021 20:00 with outcome of recovering , chills on 08Apr2021 with outcome of recovering , headache on 08Apr2021 with outcome of recovering , joint and long bone pain on 08Apr2021 with outcome of recovering , dizziness on 08Apr2021 with outcome of recovering , fainting on 08Apr2021 with outcome of recovering , right abdominal pain on 08Apr2021 with outcome of recovering , temperature spike at 101 on 08Apr2021 with outcome of recovering , unquenchable thirst on 08Apr2021 with outcome of recovering , sweating on 08Apr2021 with outcome of recovering. The patient underwent lab tests and procedures which included body temperature: temperature spike at 101 on 08Apr2021. Therapeutic measures were taken as a result of possible seizure. She is not pregnant at the time of vaccination. Facility where the most recent COVID-19 vaccine was administered was other. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine.  The clinical course was reported as follows: 4 hrs post vax: chills, sub normal temperature drop >96 f oral, eat, and airmpit , sub normal low BP, headache, joint and long bone pain, dizziness, 2 episodes of warned fainting (vasovagal); followed by temperature spike at 101 F oral onset @21 hrs. post vax riggors and falls, with warned loss of consciousness & possible seizure, followed by lower right abdominal pain w/rebound tenderness, sweating, unquenchable thirst, until fever broke 30 hrs post onset. At febrile onset 400 mg ibuprofen, followed by 200 mg every 8 hrs until symptom resolution. The adverse event result in any of the following Doctor or other healthcare professional office/clinic visit. Treatment was received for the adverse event included Public Health RN telephone consult, ibuprofen see. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient has not been tested for COVID-19. Allergies to medications, food, or other products:Yes a long list that does not include PG. Other diagnosed illnesses/medical history/chronic health conditions:IMMUNE SYSTEM: multiple allergies including anaphylaxis; R.A., reactive asthma; CARDIOPULMONARY: reactive asthma, chemical exposure lung injury scaring, COPD, orthostatic hypotension; GI: Barrets esophagial metaplasia, hiatal hernia, colonic polyps adenocarcinoma, diverticula.   Follow-up (20APR2021): Follow-up attempts completed. No further information expected.