I disclosed at one job and went from "doing great" to fired for made up reasons very quickly. The next job I felt forced to disclose and essentially the same thing happened although that job would have fired me anyway; they are well-known to everyone but me for firing experienced employees and replacing them with much cheaper new grads. I was fired twice in 10 months. The next job I had no intention of telling anything when I had to go IP to go on my MAOI. I told them depression but my boss was a former psych nurse and figured it out. She was fantastic, going to extremes to keep it private and never using it against me. In fact she probably was extra willing to defend me. It was great but it was never meant to be a permanent job and I changed from contract to permanent after 18 months. I was doing great then with no need to tell. But eventually I did for some reason and again they were fabulous. That job was my last and they went above and beyond. I went off on disability to have surgery but had a bad problem with my bipolar post-op. I tried to come back at the end of my FMLA and they gently let me know I wasn't ready. They somehow finessed a full 6 months off before I knew I wasn't coming back and resigned; company policy said I should have been let go but my supervisors convinced cooperate (and this was a huge company) to keep me until I used up my short-term disability and realized it was time for SSDI. They were awesome.

In hindsight I don't know what I'd do. The 2 bad experiences were really bad but I also think it was the people involved and I trusted them too soon. If I had to do it again I'd be very sure I was trusting trustworthy people but if I was sure they were I would do it if I needed to.