I started on 50mcg levothyroxine and in March this was increased to 100mcg. Latest blood test says medication is appropriate (June) but I am SO exhausted. I have constant aches and pains, headaches and doing anything takes a supreme effort of will. I have quite a stressful job (which I love), I force myself to go to the gym at least three times a week but I can't shift any weight. 5 years ago was a size 8 and am now a 14 - 16 and very depressed. Am seeing doctor tomorrow - what shoudl I be asking? Thank you.