That's an auto-immune disease, right? A lot of auto-immune diseases probably have leaky gut as their contributor. Getting off the wheat (off the gluten, gliadin AND agglutinin as well as other lectins from soy and legumes) is a huge help for that, one of the best things you can do. A lot of joint pain is also caused by chronic inflammation. Getting of the inflammatory processed oils and fats is also one of the best things you can do.
Female, 5'3", 49, Starting weight: 163lbs. Current weight: 135 (more or less).
Starting squat: 45lbs. Current squat: 180 x 2. Current Deadlift: 230 x 2