Hi friend, I certainly don't have answers 4 ya, but truly sorry you've had to endure tremendous trauma, and hoping all works out well 4 ya.
Don't give up hope friend, I surely can relate to your story, when my nightmare begin I believed I was dying as well, for 5 yrs I hardly was able to function, spent most of my time in bed, playing games or on a laptop, I was sick beyond belief, suffered all the symptoms you mentioned, but my labs kept returning normal. Very frustrating. I made a decision to take matters into my own hands, learn all I could about my conditon, pinpoint it down to sleep apnea, diabetes and thyroid, I struggled through multiple health disorders, getting each one back under control, I researched doctors, fought with doctors, located doctors that were willing to listen/understand me. It's been 8 long yrs, I've returned to living life once again, fully healthy.
To further assist, could you post up labs with referance ranges, each lab range varies per lab.
Wishing you well on your journey, your not alone, member are here to support ya.
You're on just cytomel now? What's your current dosage? How long have you been on it?
It's true that you will go into myxedema coma, if you don't have thyroid medication in your body, since the thyroid controls so many of your bodily functions, such as heart rate, body temperature, metabolism and others.
After you were over medicated, what actual strengths of the various T4 meds did they try you on? What dose of Armour? As AJ requested, what were your actual levels of Free T3 and Free T4? I see the Free T3 of 1.8 - what's the reference range?