Forgot to talk about your work situation on the last post that I just sent.
Glad you have an extension, but like others have said, you can't worry about what if they fire you. If they do, then I guess you just have to get another job when you are physically able.
If that happens, and you need financial assistance, there are programs out there for people with these problems. You are not the first, and you won't be the last to have to fill out information to possibly get financial help temporarily.
And if you don't get well enough for a long time, you might be eligible for Social Security disability. Sometimes that takes a couple tries to even be approved.
But if you have a legitimate case there, and the doctors see and know this and have it in their documentation as they should, that would assist your case.