I am a 51 year old male that was dianosed with an over active thyroid at the age of 15. I was given a partial thyroidectomy at the age of 17 and was drug free for 15 years. I am now on 125mg of Levothyroxine daily. Over the last year or so I have began to feel unwell. Symtoms range from aching muscles, especially my legs. Sometimes not being able to move them first thing in the morning. Cramps, twitching muscles, fatigue, insomnia, trigger finger, dry skin and lately slight depression. My GP has sent me to the hospital where I've had MRI Scans, rheumatology and neurology check ups. All resulting in nothing. Not sure which way to turn!!! Some days I feel like a 70 year old man I want to be able to run 20k a week again. Any advice would be greatly appreciated.