Hello Star Heart. Does your manager/supervisor know that you suffer from mental illness(es)? I would definitely keep a small not***** on all the comments that are being made. I made the mistake myself 3 years ago by not writting down comments that an old employer would make about me or mental illnesses. It was a lesson learned.
I left work on FMLA due to my mother being ill. Needless to say I fell into a deep depression. I ended up taking leave on my own terms (FMLA). While on leave I filed suit against my employer with ADA (American with disability act) for making comments about me and mental illnesses as if it were some kind of joke.

But unfortunetly, I sadly lost.

I didn't have enough to back myself up. If I had the proper documents/notes/etc. in place to back up my accusations I probably would of had a case and could have gotten a settlement out of it. When I filed the suit I reported the last comment she had made about me. Making fun of my disabilities in front of my coworkers. I was mortified. She knew I had OCD and Depression. I remember the phone call I had gotten from a EEOC offical saying that It had to be more than one incident for it to be a case. I tried to explain that it was more than one incident but there was nothing to lead on. The case was closed.

So, I learned a very important lesson in more than one way. I hate to see this happen to anyone!
Hang in there, but be strong. I know it's tough. Just remember to document all comments and tell someone if you feel uncomfortable. Don't let them abuse you, please. God Bless!