I know how hard it is to get there. great job!

and congrats on working hard to get healthier. I struggle with obsessing and worrying much more than physical stuff now too. What helps me are distractions. When I get stuck in my 'what if' thoughts I write down every ridiculous thought that is bothering me and then try to be completely done thinking about it after it's all written down. Then I typically do something like painting, music, drawing, exercising...etc to keep my brain from going back to freakout mode. It usually works.