I have been taking Levothyroxine 50 mcg for a week now and initially I was on such a high (probably due to the relief at finally being diagnosed and marrying up all my complaints over the last 2/3 years together and realising that it was this all along – and not just and early menopause as my previous doctors so readily dismissed it as) but now I find the last 4 days I have been suffering from extreme tiredness and cronic pain in my joints/muscles. Does anyone else relate to these symptoms? i would be grateful for any tips/advice on how to deal with this as I still need to go to work in a very busy/proactive environment and at the moment I feel like a 90 year old in need of a nursing home ;o(