If you are out of work and cannot afford insurance depending on what state you live in you may qualify for getting on state insurance and finding a PTSD therapist through that.

I know what you mean by having bad days, sometimes knowing what the trigger is, and sometimes just not knowing. I have also experienced the episodes of crying too. That could mean some deep injuries are coming up that are sad and you need to just cry and morn whatever it is.

Do you live in the US?