I have to throw in my $0.02 worth. Have you been to a medical doctor for a proper diagnosis? The symptoms you describe could be caused by a number of problems, including sleep disorders (the area in which I am most familiar, having 2 myself). While I agree that a natural approach is valid in most circumstances, there are some things that herbs or multi-vitamins can't treat or cure. So, if it was me, I would start out with finding out what's causing this problem, and once I have that information, I would figure out the best way to deal with it.
As for PhotoReading, I agree with a previous poster - don't put so much pressure on yourself. Relax, take it easy, and play with it. I'm going back to school in September, and I've just started with the PR course, and I know that I don't do well under too much pressure, so I'm telling myself the same thing.
Good luck.
Laurie