Was parked, felt like car was reversing it never really movedthen i was perfectly fine but while i was stopped at a light 5 mins later idk if i fainted but head dropped and i caught myself luckily but was super dizzy after and pulled over wasnt tired?

Analysis: This kind of sequence may occur due to an abnormal brain electrical disturbance causing seizure activity, but a sleep disorder like narcolepsy could present this way. Although this could turn out benign, please be careful. Must advise you to seek our an evaluation ASAP, with a neurologist, and curtail driving until all of this is clarified.