I believe I can help answer your question, Angela.
I have a couple of questions, however, which I hope you can answer.
You note he is down on his job. What are you referring to regarding his job and in your mind, does this relate to his emotional breakdown after you mentioned the difference in his behavior (i.e., crying)
Do you have any idea what he meant when he said, "I can't do this anymore". What in particular do you guess he is saying he cannot do anymore?
Please elaborate about his stresses
and troubles with his family. You appear to have connected his family difficulties with past, similar incidents like the one that just occurred.
What did he go to the doctor for 4 years ago specifically and while the doctor signed him off, was there any diagnosis or recommendation your husband was to follow through with?
You seem to have construed his problems to perhaps involve a complex of issues.