I'm so sorry you're feeling so bad at this time
It almost always helps me to come here to get support, and read of others' struggles. Is there any kind of exercise you can do, is walking an option? Sometimes it helps to be able to know that you are in control of just one thing, maybe it could be taking a daily walk, or sitting in a chair doing some leg lifts or lifting soup cans (if you don't have weights). Really sorry that meds are not an option due to no insurance, no one should have to suffer because they can't afford medication
but I know that a reality. Best wishes to you