My husband walked out of air conditioned house, said i feel dizzy, then went non coherent, like sleep walking, and fainted. Medics came glucose 260, BP normal, at ER all tests scans good. Released him went to eat, I had to prompt him to eat he was staring into space, extremely tired and sleepy we went home and he slept till the next day. Woke up all was fine like nothing had happened, he didn't remember a thing that happened the previous day.