It's not always easy to find out if you're being discriminated against or if your supervisor or coworkers simply don't like you. When someone doesn't like you, they may not treat you fairly, and it may have nothing to do with how you look or other aspects about you.
Can you work on disability?
When you live with a disability, it can be hard to live comfortably. You might be trying to work as much as you can, even if it's not much at all so that you can try to support yourself.