Hi IDM,
Hey, enough worrying about your daughters if..........
all attention on
you now, what you're going through and finding ways to make it through, hey??
You're the one who needs the caring/help..........and that's
now 
I know your faith in doctors is kind of "running out" but maybe an emergency appointment??
Pressing them into seeing the reality for you right now........not taking "No" for an answer, because
of course you
deserve more than that.
And maybe clinging to/holding onto any spark in the darkness...........you know you have made it through
so much before, at times it probably felt like you never would, but
you did.
And things
did get "better" than they were.
So maybe as well re-evaluating things that might help (even just a little!!)
and the things that
don't?? And a bit of a "shake up" in your routine, to suit
you, and the way you're feeling
now. Like
maybe some time of work,
maybe more time with your family,
maybe talking to your wife, or even if you can't talk to much then "just" being with her and allowing her to give you some "comfort"???
And.........just to say it again

an emergency appointment??
All this
alongside keeping on talking to us of course, because
we care/
we're here for you!! So
any way we can offer you understanding and support with what you're going through.
Alison