My mother-in-law had Hashimoto's disease - she went from hypo to hyper in almost bi-weekly spans and as you could imagine, she went from baking cookies at 3am to sleeping 16 hours a day. That was 30 years ago when thyroid problems were missed a lot.

I had much the same problem with losing too fast. I got dizzy and I simply upped my carbs. I am quite sure I am not as active as you are, but your body has both QUICK and SLOW energy taps. You need enough glucose each day to feed the QUICK mechanism. The SLOW energy conversion comes from converting fat to available glucose.

I will pray for you! I hope your doctor can solve the puzzle.

Tom.