I already made some suggestions as to how to deal with your issues directly, one by one. It seems that you are not in a position to affect much change in your husband's behaviour. You cannot make him go back to work or to get proper legal help.
His behaviour changes are the key to your relief from stress
. If you want to stay the relationship with him on his terms, then your stress will continue. You will have to either separate from your husband until he gets some more sense and starts acting in a more realistic manner, or you will have to go to your doctor and ask him for antidepressant and antianxiety medication to stop your symptoms.
You actually were the one that indicated that you have many stressors in your life and you listed them. If you cannot get your husband to swallow his pride and go back to work while getting more effective legal help or just dropping the legal case if he cannot win it, then you will continue to have the stressors.
If you are standing too close to a hot fire you have to step back from it or continue to get burned. As long as you accept your husband's approach which is not working, you will continue to suffer. Make the changes or get the medication so you don't let things bother you.
Ask your doctor for an an SSRI drug such as sertraline (Zoloft) and for a shorter term presecription for benzodiazepine antianxiety medication such as lorazepam (Ativan), and see if he or she doesn't agree.
I wish you great success and God's protection.
Elliott, MAE, LPCC, NCC, CCMHC