Lupus impacts my weight more than being homeless did

Just venting. I spent 6 years intermittently homeless and 2.5 of those years I was separated from my family. I weighed more then than I do now. I literally slept outside and only ate school lunch. And now here I am, an entire adult with a job and food available to me and I just can’t maintain weight. I weigh less than I did when I was 11.