My red blood cell count (RBC) is too high right now. It's over 600 and I think I feel better when its around 550. I say this because I have low-level headaches on most days and I can't think of a different cause for them. Anyway, I have already donated blood at the Red Cross the maximum amount allowed until January (I don't understand this rule since it should be based on your RBC--not how much blood you have donated). Anybody else have this problem and what can I do to lower my RBC?