Before I try cytomel to get my high reverse t3(25ng/dl)down, do I need to be aware of any side effects that it causes? I am very prone to panic attacks and anxiety from stimulants. Is the energy cytomel gives you a stimulant type energy like caffeine or ephedrine? I don't want to take it and not be able to handle the side affects from it. My free t3 is at 3.1 from a range of 2.0-4.4. Is that low enough to cause hypothyroid symptoms with high reverse t3? Also how much will cytomel raise my free t3 if I only take 5mcg?