I have constant neck/shoulder pain and stiffness and want to take Hyaluronic acid to try and help with that. However, I have read that in low thyroid states there is a build-up of the stuff which causes fluid build up and hence even more discomfort. Anyone using it found that it helps? I am on Erfa and adrenal support but still feel rubbish, worse in fact since the most adrenal support seem to be stimulating the whole adrenal and causing other problems. I feel as though I have had way too much coffee. 2mg Valium helps with the jitters which I think is what is contributing to my permanently contracted muscles that no amount of osteopathy can fix, and I want to find the cause not mask it with drugs. Thanks all.