Hi waterknob, I'm really sorry this is hurting so much
I'm guessing another bad day at work (or just another day at work!!) adding to the way you've been feeling???
Do you think it might help to look at the possibility of you not working there (and in that I'm not saying hang on in there while you're job hunting)???
I'm not saying that may be the answer to all your problems, obviously depression can go so much deeper than that........but maybe, despite everything else, it could help just a bit.......or enough to start to help???
Because there is more than the way you're feeling right now, you know that right?? So much more!!! And you deserve that!!!
So time to put yourself first?? Time to look at more options?? A job isn't worth feeling like this for (any job!!) or contributing to the way you feel right now.
Perhaps, pretend you're unemployed as a fact, and look for all the possibilities from there, have your husband involved too.........and look at options for health care/medical help/medication, look at possibilities for different jobs, look at therapists on a sliding scale, look at downsizing in accommodation, look at whatever might be bothering you about not working there......there may be more possibilities than you think...........at least more manageable possibilities than you think, compared to the way you're feeling now!!!

Alison