I plan on going back to the doctor for a full on physical in the next few weeks. I do have hypothyroidism. I've not been very good about taking the meds for it - and the $$ is no excuse - because even without insurance, my perscription was only $4 for a 30-day supply. (Fortunately, I do have insurance, but my friend didn't, and her thyroid meds are the same as mine and she only pays $4 for hers.)
Pineapples, I don't know about how the state medical plans work where you are, but here in Oklahoma, someone with a chronic health condition can often get state insurance at little or no cost. You might want to check with your local health and human services. You may also be able to get some affordable counseling that can also help with your weight loss. It can't hurt to see if there is any help available.