I'm in sort of the same situation. My immediate supervisor knows a LITTLE about my mental health stuff, but not very much, and he's not usually very accommodating. The big boss, unaware that it is an accomplishment for me just to get out of bed on my bad days, just recently told me I wasn't living up to his expectations (well, what he said was "I don't consider your hiring a total loss YET, but...."). That was enough to push me over the edge. Friday is my last day before a leave of absence to deal with the horrendous depression and figure out where to go from here.

My job has offered me NO help, no accommodations (as they are required to by law), so I would say if yours is willing to do so AND pay for it, to jump at it. It's not costing you anything and you might learn some things that can help in the future. If you aren't already working with a therapist for the depression, you can do that on your own and nobody needs to know.

Good luck. I hope this all turns out well for you.

Candy