hey welcome to SF,
meds and therapy are a good place to start, if you aren't doing these already.
I like alternative medicine (it's in my signature)
the black hole feeling in your chest is interesting.
ok, this may sound weird, but I was taught a meditation exercise where if you feel you are full of negative engergy, you imagine it shooting up out of the top of your head and into the sky.
in any case, welcome!