I had all of your symptoms too. My disease process included the heart palpitations and the falling asleep and extreme fatigue. I was diagnosed with fibromyalgia. Fast forward 7 years and I found Celiac disease here. That is what I had. Even had the DH rash. But just wanted you to know that your symptoms are consistent with Celiac and if it is Celiac, the malnutrition and vitamin deficiency can make you feel extremely lousy and can take a long time to heal. I am in my second year gluten free. All of my symptoms have disappeared. The rash easily re-activates with gluten, but I think you should pursue the gluten free diet and see if it helps your symptoms.
I wish I had gone Paleo right away, but I messed around with gluten free baked goods, and rice, potato's and corn for a long time. Then I took the plunge to go full Paleo and my healing really took off. I cannot believe my muscles are back and I feel good again. I really thought I'd stay that way forever. The weakness was horrifying.
If you are interested in Paleo, check out Mark's Daily Apple.com.
It's hard to do but man it is so worth it.
I even make my own beef tallow now!
You may find that trace gluten and cross constamination bring all and I mean ALL of your symptoms back. That is what happens to me. But at least it is short-lived and I know that I can recover. Then I am ever more vigilant about gluten.
Basically the only packaged stuff I eat is A1 steak sauce, Horsradish, (gotta have something to help me get all that meat down!)...and Dove Chocolate. I know, I know...not technically Paleo unless you believe Cacao is a vegetable...I do.
My sister was in really bad shape before she went gluten free. Dr.'s couldn't figure her problem out either. She went gluten free and it all disappeared. We couldn't eat gluten again to be able to test. But now the children in the family are coming up positive for Celiac in the testing.
Don't be surprised if you have nausea in the beginning. I did...but it got way better as I healed. I used to push myself to exercise when they said it was fibromyalgia and I was so damned sick. Anyway, since I increased my protein so much, my muscle mass has increased like crazy...and I do very minimal exercise. But mentally and in physical stamina...I am world's better than when I didn't know what was wrong with me.
good luck and I think you are right to suspect gluten may be the problem.
Yeah, and my own rule in my head now is..."Meat makes muscle...so let thy food be thy medicine." Energy way up there too.
Good luck.
It becomes no man to nurse despair, but in the teeth of clenched antagonisms, to follow up the worthiest until he die.
--Lord Alfred Tennyson
Separate the chaff from the wheat; then just eat meat.