Permanent disability!

Hi - I’m new here and right now I’m on temporary disability from work because of severe CFS symptoms. I want to ask my doctor about going on permanent disability as I have an extremely hard time working. I only work part time when I’m working but my job in very physical (I work for a food store) and I get tired out and bad flare ups very easily from the job. Is anybody here on permanent disability and do you have any suggestions for me. Thanks and glad to be here. Lynn