MrsMcDucket - I am so sorry for your health and work ills. Been there - but with Chronic Fatigue/FibroMyalgia. I got FMLA "canned" too. Ultimately I ended up filing for, and eventually winning Social Security Disability. I'd suggest filing for SSI and SSD as soon as you have a full diagnosis and treatment plan, if you don't already have mid- or long-term disability insurance - some employers carry it or at least offer it.
So, do we add you to our Tuesday night Vigils?