My story is actually a lot like yours, Alexis. Have health problems myself both physical and mental health, still living at home at 28 though I can work - I'm having trouble finding a permanent job due to the economy, just suddenly felt the urge to learn to knit one day, and here I am! I do find (unless it's my imagination?) that it helps me cope with my mental health problems: ADD/ADHD, depression, anxiety, etc. And I'm also extremely creative and love arts and crafts, always have (used to be a jewelry make too) and I love making things for myself and friends. So there it is.
Oh, and welcome!