Maybe you could go on T4 and add T3. I had the same problems as you, but worse my teeth felt like they were going to fall out. My endocrinologist said that the T4:T3 combination of Armour is not good for everyone. So, you might benefit from T4 (Synthroid, Levothroid, or Levoxyl) and then add a little bit of Cytomel (the T3). Unfortunately, I wish I could say that I've found the miracle combination, but I haven't. I think part of the problem is that my Hashi's messes with the output my own thyroid gives and so I'm just not stable.
After you get your adrenals checked, you might consider going on Thyrolar, a synthetic combinaltion of T3/T4. I just don't see the point of taking a "T4 only" hormone and then adding Cytomel, UNLESS you are wanting to take just a very tiny amount of the Cytomel. Also, you just have to pay for only one prescription if you get the combination. I took Thyrolar for years and did very well on it.
Have you just been recently diagnosed with thyroid problems? What dose are you taking? Could you post your thyroid blood tests (the FT4 & FT3).
I'm currently taking Armour and Levoxyl. I was on Armour alone, but had a hard time keeping my thyroid hormones in balance. This combo has been working out pretty good. I do think I need to up my t4 though based on my last blood tests.