Maybe you can express your concerns with them? Maybe you could say that you are afraid that you might say something that would make them feel like they need to place you somewhere or give you meds.
I used to be the same way about taking meds, but now (for me at least) I am glad I am on them because it made such a difference in my outlook (most of the time). I am more positive than I was.
I am not saying that you should/shouldn't take them, just giving you my experience.

I hope you feel better.