I too have thyroid disfunction. I have Hashimoto's Thyroiditis for more than 6 years now. Unfortunately I had Dr.s who used old standards for TSH and allowed my thyroid function to get progressively slower for 5 years. I gained over 50 lbs. in 4 years because the thyroid wasn't properly medicated.
I also have scarring discoid lupus and mixed connective tissue disease asst. with lupus. The pain in my legs and loss of muscle tissue make it difficult do to any significant amount of exercise.
I do take a B complex for more than a year now. It has helped tremendously with the fatigue asst. with both hypoT and Lupus.
Still was told when this CPAP is working I should be able to lose some weight but so far no progress. It is very frustrating.
Good luck getting a knowledgable Dr. to handle the thyroid problem correctly. Took me a while.
May God Bless and Keep Us All
Patience 50