UT and hypothyroid

I have been doing hardcore UT for about 3 months. When I say hardcore, I mean drinking almost all of it everyday. Before that I drank about 8 0z. three times a day for three months. I was on 180 mg of Armour thyroid for 15+ years. I am 42. After about a month on the "hardcore" regimen, all of my chronic fatigue, achiness, and all the rest of the stuff that comes with chronic illness disappeared. I started having a reaction to my Armour and started cutting back on it. I felt better that I ever had. In about a month I was off of my medicine completely and felt great. About a week after going off of it I started having the worst pms ever, followed by a horrible period, cramps, migraine, the works. I decided to wait a couple of weeks to get my thyroid checked so it could regulate.
I waited three weeks and have felt pretty bad the last two. I got my TSH tested yesterday and it was 11.5. needless to say, I am dismayed because I thought the UT was helping my thyroid. Also, I am afraid if I go back on my full dose I won't be able to tolerate it. What I experienced before was chest pains, jumpiness, general hyperthyroid symptoms that went away when I cut down the meds. This is very confusing for me because I have an 18 year old son with a low thyroid too and he is about a month behind me on the UT. he also had the same experience with intolerance to his Synthroid and has been off of it for two days. He feels great but is now worried that his will go back down. I didn't have it tested when I was cutting back, I only went on how I felt. Has anyone had experiences like this? I would really appreciate any insights.