Instead of waiting for it to "heal", why don't you take it upon yourself NOW and see a doctor? I really don't think the suboxone would cause this kind of effect, and I don't think the relapse would of either. You could have an underlying medical condition and you will NEVER know until you see your doctor. Unfortunately, there's not much we can do to help you with this besides compare our experience with suboxone to yours. You gotta see a doc man.
Keep running. Keep doing what you love to do. Focus as MUCH as you want on it. There is no reason you should focus on your sobriety over your passion. As long as that passion is not bridging a connection to your past drug use, I don't see the harm? I was confused with Ronnie's post the same way you were. Yes, you need to devote 100% of your efforts to staying clean and away from opiates. BUT, doing activities you have a strong passion for is a GREAT way to keep your mind occupied. It's just one more moment that you won't be thinking about your past, and or opiates in general. That is a good thing.
Keep at it! Drive yourself to work out more, run more, take time to do all the things you enjoyed in life BEFORE you're addiction. This is how we truly get our life back, suboxone is just along for the ride!
But the main thing here is, SEE YOUR DOCTOR.