I had to switch doctors, and the only one I can go to completely took me off Cytomel and put me on Synthroid. Of course I feel exhausted, cranky and very off. My TSH and T4 are not even borderline, but he insists my body will adjust. He doesn't think I need more comprehensive testing, so I'm searching on my own to locate a source for T3. Please PM me if you can help. I appreciate this forum so much and have learned a ton, so thank you all.