Hello can anyone offer me there thoughts on this I had my bloods done last week as feeling very tired all the time. Am currently on 75 mg of levothyroxine for underactive thyroid. Spoke to doc today and told that tsh has raised to 5.2 from 4 which was 3 months ago and my tsh is also high which is confusing the doc. So I now have to wait till early next week after she can ring the hospital for advice. They have questioned if I have been taking more thyroxine than stated 75 mg but I haven't. Any thoughts appreciated as I have never heard of this and am freaking out a bit .