I had an issue where I felt faint, started sweating, my chest felt tight but not painful, and my hearing was muffled. Blood pressure taken my a medic on site was 74/46 and blood oxigen was 92. they took me to the emergency room and they did CT of the head, chest exrays, blood gases twice and hooked me up t. a heart monitor. everything checked out fine with the exception of the blood pressure and oxigen levels. the blood pressure did come up to 98/60 once they gave me i v fluid. what would cause my blood pressure to drop so low.