Do you see your endocrinologist (thyroid doc) regularly? If that is all good, then discuss your symptoms with your primary doc and ask to be referred to a specialist in that field (like neurologist or rhuematoidologist.....
I was diagnosed with fibro. I understand the exhaustion. I will lay anywhere and go to sleep. I have HAD to nap on the kitchen floor. This doesnt mean you have fibro, it just means I understand your exhaustion. Legs feel like they are encased in cement. I have stopped driving because of my loss of focus. It is frustrating. And I will be darn if I am gong through it alone. My darn dr. is called, poked, prodded, asked, and demanded of. I just finished with appointments and have many between now and Jan. I am scared of January. That is when they are going to poke and prod my pancreas : (
I will stop blathering and just say, take care of yourself. Go to doc. (not er) and be your own healthcare advocate. Make them do their job in taking care of you.
Hanging in there like a monkey on a vine, knowing that through this journey; there is something positive to find.