I didn't or will need to pray for forgiveness because this is all my ocd?

In the first place, since you are a Christian, you know if you ask for forgiveness sincerely, you are already forgiven, so you can let it go. However, you realize that the powers that be are aware of your illness- they're supposed to be aware of anything. It's not something you caused, and it's not something you can cure without help. So, stop being so hard on yourself. I think most people with any chronic illness question their faith, but if you want to feel better- read Job- he questioned too.