Yesterday I woke and felt pretty good. Was planning on doing several things and looking foreword to having a good day in the upright position. About 2 hrs after getting up I sat down at the computer for about 10 minutes and with a couple of minutes could feel this overwhelming fatigue and paralyzing stupor stage set in. I could move but it took so much effort. Went to bed for 2 hrs, slept hard, woke and never recovered from the dazed foggy state of being. I have said many times befor that sitting at the computer for 10 min was my max cuz it puts me to sleep but something about how quickly and dramatic the change was yesterday set off a bell. I had a complete neuro work up with cat scan, dye and strobe lights and they said my brain functioned perfectly normal. Any thoughts about this and what direction to go for answers?