I spent 2 years wiped out because my T4 was not being changed into T3, the active form . Thanks to a great naturopath doctor who did not trust the TSH test, and treated me for hypothyroidism anyways and I recovered alot of my energy. I've given my MD various articles on the subject, to no avail. Last time I saw him, I gave him a copy of Dr. Jacob Teitelbaum's book THE FATIGUE AND FIBROMYALGIA SOLUTION. He's an MD. Hope that works!