This is why I'm curious...This morning was actually ok for me, got to work, everything was semi-normal...then about an hour later i felt this wave of exhaustion just rush over and seem to envelope me. i could barely keep my eyes open and my head up. i felt horrible all of a sudden and wasn't sure if I'd make it through the whole day if the symptoms that were coming on persisted. then a couple hours later it seemed to subside and i was ok again. i then found out that during that hour or so that i was experiencing such exhaustion, it had been raining outside...i guess it only rained for a little bit and then cleared up. i'm just wondering if there's maybe a connection? probably just a fluke. has anyone else noticed this?