It sure doesn't. I mean, I have autoimmune problems, but so does my mom, possibly my dad, two grandmothers had them, at least one grandfather, and several cousins.

I still try my best. Maybe my best is not as good as a healthy person's best, but one of the things I learned is not to compare with others, and just stop listening when people think I'm "just lazy", because I don't need to be both full of guilt AND ill. One of the responsibilities you have when you are ill is to YOURSELF. I'm not born solely to please others.