I have had issues with morning anxiety as well. It makes me dread going to sleep, because I know in the morning I will feel awful. The first time I had this problem, I was taking prednisone. It raised my cortisol levels quite high (I know this from a blood test). Since our natural cortisol levels are highest in the morning anyway, this just magnified the "Cortisol Awakening Response". Any chance you have extra high cortisol levels? Extra anxiety can do the same thing.
I'm sorry, I know it feels terrible.