In late May through the third week in June I went from 112 lbs. down to 99 lbs at one time. I now weigh 101 and have stayed at that weight. I have made no changes in my diet. I am not sleeping more than 2 hours at a time, am extremely fatigued, irritable, very dehydtated no matter how much I drink. My skin is drier than usual, though I do live in a dry climate. My eyes are red rimmed, probably from not sleeping, I have (in the last week) developed little twinges of numbness on the left side of my face and in my left foot. The sleeplessness seems to be causing me to experience foggy thinking and clumsiness. Very frustrated. Any ideas?