Car accident; Not thinking too clear, confused; Horrible headache; Could hardly stop shaking because she was so cold; Chills; Vomiting; Fever; Really sick; Could hardly stop shaking because she was so cold; This is a spontaneous report from a contactable consumer. A 72-year-old female patient (consumer) reported received bnt162b2 (BNT162B2, Formulation: Solution for injection, Batch/Lot Number: EN6200), dose 1 via an unspecified route of administration, administered in Arm Right on 23Feb2021 19:00 (Age 72-years at the time of vaccination) as DOSE 1, SINGLE for covid-19 immunisation. The medical history included diagnosis of allergies, compromised immune status, respiratory illness, genetic / chromosomal abnormalities, endocrine abnormalities (including diabetes) and obesity all from an unknow date to unknown date, Illness included Triple bypass in from 2020 to 2020, pertinent Details Include surgical procedures and dates: Hospitalized for this event, 02Mar2020-discharged a week later on unknown date. The patient's concomitant medications were not reported.  There was no history of all previous immunization with the Pfizer vaccine considered as suspect and no vaccines were administered on same date with the Pfizer vaccine considered as suspect. This patient was administered the first dose of Pfizer COVID-19 Vaccine on 23Feb2021. She reported on 25Feb2021 around 12:00 she had onset of chills, could hardly stop shaking because she was so cold and then vomiting. She went to bed on 25Feb2021 and when she got up on the morning of 26Feb2021 she thought she was ok. She went to work on 26Feb2021 and started shaking with chills again during work. Work sent her home and she had a car accident on the way home because she was shaking so bad. She was not thinking too clear, confused since 26Feb2021 -her daughter told her that night of 26Feb2021 she said the same sentence 3 times in a row but never finished the sentence. She went to bed on 26Feb2021 and when she got up she had onset of vomiting and chills again. She developed a fever of 102.8 degrees Fahrenheit which went from that to 102.2 degrees Fahrenheit and then back up to 102.8 degrees Fahrenheit. She still has the chills, shaking and vomiting. She also reported having a horrible headache and being really sick on 25Feb2021. She has been in bed. She called to ask if these events will go away, how long they may last, and if they will reoccur or worsen with second dose of Pfizer COVID-19 Vaccine. Not thinking too clear, confused: she can form a sentence now. She had car accident on 26Feb2021, she reported she recovered completely from this event, had no lasting effects but her car didn't recover completely. Events were getting somewhat better, still had horrible headache since 26Feb2021and stated that who knows when the chills and fever would happen again but improved. The patient underwent lab tests and procedures which included body temperature which was noted to be 102.8 Fahrenheit on 25Feb2021, she developed a fever of 102.8 degrees Fahrenheit which went from that to 102.2 degrees Fahrenheit and then back up to 102.8 degrees Fahrenheit , body temperature: 102.2 Fahrenheit on 25Feb2021, she developed a fever of 102.8 degrees Fahrenheit which went from that to 102.2 degrees Fahrenheit and then back up to 102.8 degrees Fahrenheit, body temperature: 102.8 Fahrenheit on 25Feb2021, she developed a fever of 102.8 degrees Fahrenheit which went from that to 102.2 degrees Fahrenheit and then back up to 102.8 degrees Fahrenheit. The outcome of the events chills, vomiting, not thinking too clear, confused, fever, and could hardly stop shaking because she was so cold was reported as recovering. The outcome of the event car accident was reported as recovered on 26Feb2021and, while for other it was unknown. There were no other adverse events following prior vaccinations. The patient's second dose Pfizer COVID-19 Vaccine scheduled for 16Mar2021. The reporter provided consent to contact.  No follow up activities are possible. No further information is expected.