Just wondering how you're making out with your "sinking feel" now. I have similar problems and have gone from jogging 5km twice a week to barely being able to slowly walk more than 1 block. My N.D. is suspicious that I have thyroid probs despite tests back from my M.D. showing it within normal ranges(1.0). I also have Candida and sinus problems.
Has anything changed for you and, if so, what did you start doing differently?