Hi. I have been diagnosed with hypothyroidisum over the last 2 years. Since then my dosage of Levothyroxine has steadily increased to 125 micrograms. On the last increase I felt amazine almost straight away. It was an increase from 100 - 125. However, I started to sweat, I felt very strange about this for a few weeks but then realised I should be sweating, it's hot! It was then too it dawned on me I had not been sweating for years, even when running etc. So I was feeling really good, my mind was clear, very clear... My body seemed to be OK too. But now, three months after the increase I have once again am having days where I feel rubbish. Last week at work I started to talk to someone and my words were a jumble. I felt rough and it took an hour or so to be able to talk and make sense. Is this normal guys?