You still can do some sports, maybe still the one you always did and loved. Like I said before, go to a physical therapist and a psychologist to see if you have created some patterns for yourself that made you do less than you actually are able to. Because ACNES is indeed unpredictible, it hurts like hell from time to time, but you still can do what you love. Like with going to work talk about it. Tell people what you need and what you want and see what is possible. Accept the fact that the ACNES won't to more damage to your body even when you walk or excerise. And therapy can help with that.