I was diagnoised in May 2012 as underactive! I have gone from 50 to 75 and last week up to 100mg of levothyroxine! My results are TSH 1.5 catchment is 0.3- 6.5 this has gone from .82 in August to 1.5 now! I have all other normal results had this checked independently. Been to see and Endo and discharged!! Still cant work more than 6 hrs a day and no more than 4 days in a row! Have a fuzzy head, aching arms and legs, fall asleep at the earliest opportunity, feel like things are crawling on my skin!! I cant even contemplate exercise which I need for my job! Is this normal and do I have to just suck it up and get on with it!!! Im not taking any other meds apart from Iron tablets due to Ferratin being 5 in August but now up to 26!! Normal GP who was lovely has left!! I feel 100 and worse than before I started taking the bliming tablets!!! Rant over sorry!!