It can't hurt to see the Rheum. MD, but get copies of the medical records from the doctor who is referring you there so you know why you are going there. Steroids can cause swelling to your tissue, but that shouldn't be the reason for sending you there.
I would also get another Endo MD. I also had an allergic reaction to Synthroid, but I immediately went on a different thyroid medication.
Did your Endo. MD order labs for you about a month after changing over to Armour? He should. I suggest you always get copies of your labs as well so that you can keep track of things. But please get another Endo MD.
Sounds like you are over medicated.
You are either overmedicated or 90 mg is just too much, too fast for you. Armour has a relatively high T3 content, and that can cause the symptoms you've mentioned. Some people have to work up very slowly in dose.
Do you have thyroid labs to post? If so, please do and include reference ranges from your own lab report; ranges vary lab to lab.
You should talk to your doctor and ask him if you can cut back to a lower dose for a while.
I spoke with a friend who is a pharmacist and when I told her the dosage I was on and that they just started treating me about a month and a half ago, she suggested that I call the pharmacy first and have them verify the hard copy to see if the dosage was correct. I did and it was, so I then called the dr. office and had the nurse check the notes on the script and it was called in wrong! It should have been one 30mg tablet per day, not 3 per day! Now that they realized they made the error they have scheduled me to come in for a full thyroid panel, setting up a CT and referred me to an Endo. If I hadn't mentioned before all of this had been done so far by my GP.
So glad you called and checked on this!