I had thought I was feeling a little better for the last couple of days. Thought the b12 and iron I have been taking for about the last 4 weeks were starting to work. Then this afternoon I feel terrible again. Body thrumming, forearms aching, really light headed ( that hadn't gone away) fatigued (nor that) and now very tearful and no-one to turn to. Having a rheumatology appointment at the end of August is adding to my anxiety. I keep thinking I have MS or at least ME or fibromyalgia. I preferred it when I thought I needed more T4 or some T3. At least then I felt that there was something I could do. That it was just a question of finding the right combination or dose. Now I may face a lifetime of feeling like this.