Hi, Sharon.
Sounds like you've might be on the same roller coaster I'm on. They're not entirely sure what I have, since I keep developing other hormones that don't work, beyond the PCOS-type stuff, and I have no cysts and never had any kind of cycle. But, weight loss is the big thing and its REALLY REALLY hard.
Are there any kinds of exercise you like to do? I like the water, so I decided to swim. Of course, starting tomorrow, I get to add something land-based to it, because my doctor won't leave me alone...
She's a good person though, and watches out for me. We belong to the same gym, although I didn't know it when I joined.
Anyway, find something you LIKE to do, and do it. I went through the mill with the glucophage... it made me really sick. It was horrid... I was throwing up all the time (hmmm, not that different from what Im doing now, but for a different reason!), and wearing my winter coat in my hot classroom in June!
Take Noodles' advice: come join us on the monthly chat thread. I have described my whole journey/story more times than I can count here, and there's another recent post about it.