he felt like he was on something, like someone sedated him and like he was under the influence like as if someone put something in his drink; chills on his body, shaking all of a sudden; chills on his body, shaking all of a sudden; blacked out, had lost consciousness; started with flu like symptoms; headache; dizzy; stomach pain; feeling very hot; he had an accident while driving fully loaded vehicles; This is a spontaneous report from two contactable consumers (one is patient mother). A 37 years old male patient received the second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number EW0170) injected in left arm on 20Apr2021 14:00 at age of 37 years old at single dose for COVID-19 immunization.  Medical history was not reported. There were no prior vaccinations within 4 weeks. No AE(s) following prior vaccinations. There were no additional vaccines administered on same date of the Pfizer suspect. Concomitant medications were not reported. Patient previously took the first dose of BNT162B2 (lot number: EN6207) administered in left arm on 20Mar2021 at 14:30 (24hrs) at age of 37 years old at single dose for COVID-19 immunization and experienced soreness, arm pain. Caller states patient (her son) had his second Covid vaccination on 20Apr2021, the first one was 20Mar2021. Caller states patient had really a severe reaction from the second Covid Vaccination and that was the reason they are calling to find out. Caller states they reported it to the health department and the location where he had the vaccination but they had no success at all with that. Caller states she will just give an overview and then maybe the patient can chime in if there is any specifics, then maybe he can answer those. Caller states so her understanding was that several hours from having the vaccination, he blacked out, had loss of consciousness on 20Apr2021. Caller states it happened while he was driving on the highway. Caller states it resulted in an accident. Caller states the patient is a self-employed, owner/operator with a transporter that he drives for, he transports automobiles. Caller states what happened was he blacked out while talking on the phone to her other son and that was how they were aware that he had an accident while driving fully loaded vehicles, in his occupation. Caller states she called 911. Caller states of course they did not have direct information for 911 in the area that she was calling from, but they were able to locate someone, she did not even know the definite of where he was located and by that time, someone had arrived to the accident scene. Caller states the EMS and police department arrived on the scene and the EMS person said that it was a common thing for someone after having the Covid vaccination to black out and have a loss of consciousness. Caller states they checked the patient out and said that they did not have any reason to take him to the emergency because there were more COVID patients in the hospital there and that was the extent of what she knows. Patient states he blacked out on 20Apr2021 around approximately 20:30, 21:00 (24 hrs). Caller states he took the vaccine at 14:00 (24hrs) on the same day. Caller and patient states that is the first episode he has ever experienced, he has never had any blackouts before, no loss of consciousness. Patient states first off, he started with flu like symptoms, in which he had a headache on 20Apr2021, and was real dizzy on 20Apr2021. Patient states then the blacking out came into place. Patient states it also came with stomach pain before and dizziness on 20Apr2021. Patient states he was feeling very hot on 20Apr2021 then all of a sudden that was pretty much when he lost consciousness when he was operating a vehicle. Caller verifies the accident and the symptoms are from the second vaccine. Patient verifies had the accident around 2030 or 2100 and felt many of those symptoms right before. There was no adverse events (AEs) require a visit to Emergency Room or Physician Office. Reporter for AEs seriousness was unspecified. Caller states he received the first Covid vaccine 20Mar2021 at 14:30(24hrs) and the second Covid vaccine 20Apr2021 at 14:00 (24hrs). Patient verifies that all the symptoms happened at one time. Caller states the patient had no symptoms prior to the vaccination on 20Apr2021 other than the small symptoms, he did have some symptoms from the first vaccination. With the first dose, caller states just soreness, arm pain, not like symptoms from the second vaccine. Caller states with those symptoms and everything, he was driving and he was trying to get to the nearest place where he could pull over and he did not remember how close he was. Patient states he was probably about 40 yards from the location that he needed to be at to pull off the roadway. Patient states the next day or the next evening, for the whole day on 21Apr2021, he felt like he was on something, like someone sedated him and like he was under the influence like as if someone put something in his drink. Patient states he had chills on his body, he was shaking all of a sudden, then a day later, he felt like a whole new person. Patient states it took about two days for it to get out of his system and then he states he has recovered completely from all symptoms by 22Apr2021. Caller asking if there was another number or something that she can contact regarding the results of having the reaction and causes of these symptoms. Caller states when she had a Pfizer vaccination she got some flyers and that was really where she got the information at to call because nobody really knew. Caller states she contacted a lot of numbers prior to getting this number and nobody really knows so she had a flyer on counter measures and the compensation program and she was wondering what the phone number was for that program since an accident occurred that resulted after the vaccine. Outcome of event had an accident while driving fully loaded vehicles was unknown, for rest events was recovered on 22Apr2021. Additional information has been requested.