I've been wondering this as I've felt awful for the entire 9 years I was put on it after my partial thyroidectomy. My bones still crack but got worse over this period, I still feel horribly tired down to the bone and developed heart arrhythmia, mood swings etc.
9 years later and I need a total thyroidectomy - due to the same issue I was diagnosed with originally having reoccurred. No one knew the source behind the cysts but told me it could even have been tap water. And naturally the Levothyroxine will have to be increased and, quite frankly, it's terrifying knowing my symptoms will only get worse.
Just how many people have had success with Levothyroxine? My doctor and surgeon won't entertain the thought of switching my medications and stating my TSH levels et al are "normal". Is there any other medications i could try without needing a prescription? Is there anything else I can do to help myself?