I have been taking Eltroxin for over 8 years due to treatment for...

I have been taking Eltroxin for over 8 years due to treatment for Hodgkins Disease (cancer of the Lymph nodes, glands) the side effects I have noticed are headaches, blurred vision, lack of energy, sore joints especially knees, weight fluctuations, stomach cramps, heart rhythm increase, numbness in my left shoulder & arm and sometimes my little finger on my left hand is completely numb, sleep irregularity, night sweats. I cant seem to find any specialist who will listen to me. I have stopped taking them from time to time and most of the symptoms disappear but my metabolism slows down so much that I have no alternative but to resume taking them.