had diarrhea; a fever of 103*F; He was shivering due to lack of energy; He was shivering due to lack of energy; lost his voice; threw up; sleeping for 48 hours; terrible pain in his stomach which made him scream to the point where he lost his voice; metallic taste in the mouth; This is a spontaneous report from a contactable consumer (patient).  A 41-year-old male patient received bnt162b2 (BNT162B2), dose 1 via an unspecified route of administration, administered in arm left on 23Apr2021 14:15 (Batch/Lot Number: EW0171, not sure if the 0 is a O or a 0) as single dose at the age of 41-year-old for covid-19 immunisation, administered not at a military facility.  Medical history included ongoing Hashimoto's disease diagnosed about 10 years ago, ongoing vitamin D deficiency diagnosed about 8 years ago, ongoing vitamin b12 deficiency diagnosed about 8 years ago, lung neoplasm malignant. Family history included: dad had lung cancer, mother had thyroid issues and Alzheimer's. The patient's concomitant medications were not reported. No history of all previous immunization with the Pfizer vaccine considered as suspect. No additional vaccines administered on same date of BNT162B2. No prior vaccinations (within 4 weeks). No adverse events following prior vaccinations. The patient experienced terrible pain in his stomach which made him scream to the point where he lost his voice on 24Apr2021 with outcome of recovered on 27Apr2021, metallic taste in the mouth on 23Apr2021 with outcome of recovered on 24Apr2021, had diarrhea on 24Apr2021 with outcome of recovered on 26Apr2021, a fever of 103°F on 24Apr2021 with outcome of recovered on 26Apr2021, he was shivering due to lack of energy on 24Apr2021 with outcome of recovered on 27Apr2021, lost his voice on 24Apr2021 with outcome of recovered on 27Apr2021, threw up on 24Apr2021 with outcome of recovered on 27Apr2021, sleeping for 48 hours on 24Apr2021 with outcome of recovered on 27Apr2021.   The patient underwent lab tests and procedures which included body mass index: 37 on an unknown date, body temperature: 103 Fahrenheit on 24Apr2021. Therapeutic measures were taken as a result of terrible pain in his stomach which made him scream to the point where he lost his voice, had diarrhea, threw up. The course of events was as follows: Within the 1st 24 hours, he mentioned that he was fine and easy but had a metallic taste in the mouth for 24 hours. He mentioned that the next 72 hours were really bad for him. On 24Apr2021, that night, he started to feel terrible pain in his stomach which made him scream to the point where he lost his voice. It was like knives cutting his stomach. He threw up everything he ate, had diarrhea for 2 days along with a fever of 103 degree F for 2 days. He would try to go to the bathroom and he was shivering due to lack of energy that he could not go to the bathroom. He slept for 48 hours after the 1st 24 hours after vaccination due to the side effects. By Monday afternoon, 26Apr2021, he noticed that his side effects were subsiding and by Tuesday, 27Apr2021, he was a different person and was like nothing happened, he was able to resume a normal life and go back to work. The events did not require a visit to Emergency Room or physician Office. He did not go he was taking orange juice and ibuprofen to treat himself. No relevant tests. He asked if this was contraindicated with him to get the 2nd dose. He has not spoken to his doctor yet. He queried if he should get the second dose or is it contraindicated. Patient mentioned he is very large at 6'6" and 320 lbs. He is wondering if he should have a different dose because he is so big.  This report is not related to a study or program.  Information on Lot/Batch number was available. No further information is expected.