Help for thyroid problems

Hi, I began having thyroiditis attacks in 2000 after lyme and dental issues. I took nat mur and cleared all symptoms - I'd been on T4 for 4 months. I had another thyroid attack tsh over 100 in 2004, went on meds for 1 year, then took homeop and off again. In 2007 my TSH hit almost 300 and back on meds. Having a hard time getting off now and the meds are causing major issues including chest pain (had it checked out, no problems cardiac). When I do take the levothyroxine, I feel sick, have insane hunger, problems breathing - esp at night and lying down. When I don't take it I feel so much better but after 5-6 days I start to crash and have chest pain in my upper right at my collar bone and up to my jaw and severe fatigue. Sulphur helped a lot with the mental and hunger but still crashing, thinking calc iod 12x daily but not sure a safe way to stop the drug, titrate down? Also, when go off the drug a few days very sensitive to negativity on tv or in talking - need to turn it off or be alone. Also, I eat very healthy and crave stimulants when tired. Blessings!