I am on the Armour rollercoaster and am trying to figure out what is working for people. I tried to go to a compounded porcine and I ended up with chest pain and couldn't stay awake past 8pm, and that was only 2 days on it. I also tried Levythyroxine for 4 days and by the 4th day I could not even get off the couch and was freezing. So now I am back on Armour, I don't feel well since the reformulation. ( hot flashes, achy and tired joints and bones, heart racing, dry hair, brittle nails, dizziness, etc.) But at least I could function. I would like to know what you are doing now and how is it working? Did you go to Nature-throid? Erfa? Or did you just bump up your dose of Armour? Any help would be appreciated, I feel like I am going crazy!