SusanPHi Kendra,
My daughter had the same symptoms last spring. They crept up and became worse over a few months. Had her labs done and she was way out of control. We upped her Cortef and within 2 weeks all anxiety gone. A year later now we have just halved her Florinef since her Renin was low. Hoping the anxiety does not return as a result. Make sure you check your regular levels of 17OH etc. along with thyroid.