I was diagnosed with it 3 years ago. The docs believed it was steriod medicine induced and not another problem. So when the weaned me off the steriods, I lost 60 lbs, and felt great - FOR a while.
3 years later, I have gained back the 60 lbs and some, and I have all the typical symptoms again. A year ago I started bugging the endo to test me. I swear I have an adrenal tumor or something along those lines, and that it is not just medically induced. He refused to test me last year.
This year, he agreed about my weight and ordered a dexamethisone cortisol suppression test - just the 1 where I take the pill 8 hrs before and then have a blood draw. The test came back normal - and he thinks that this might be thyroid related as I have Hashimotos thyroiditis. I DON'T AGREE!
I go back to see him in 2 weeks. I'll let you know what he says. Keep us updated on your status too. PM me if you want to chat. It seems like this is the hardest thing to diagnose.