I'm so sorry this happened to you!
I wonder could you reach out to others who are recently unemployed? Maybe there is a group in your area. In the meantime, can you call your doctor and share what you shared here?
Losing a job is a big deal and comes with all this grief. I know, I lost mine in late 2008 and it was part of what sent me down into another major depressive episode. It would be so good if you could be proactive but I understand the financial restrictions.
Hang in there. Lots of people are where you are now or have been. Other people really don't 'get it' until it happens to them.