Well, you sure don't lack in appetite. :-) This being hungry all the time could be an indication for parasites, either worms or Giardia. Or both, which wouldn't be very unusual. And about your weight: if you feel comfortable with it, then there is no reason to worry. My initial question arised from my own experiences. I've always been on the skinny side, but when parasites bogged me down, I lost something like 20 pounds. Most of them I couldn't afford to loose; I felt very weak afterwards. After Humaworm (4 times so far) I gained weight again, and I would say I'm back to normal, more or less. Much to my relief.
Go ahead and do as Dr. Bailey suggests. You should be very fine indeed.