Good for you!
What you said makes sense. When I made cheerleader in HS, I worried so much about it over the summer that I got acute colitis. Once I was an active cheerleader, I didn't ever have it again. Which doesn't make sense, or, maybe, it does. :shrug: I have been much more stressed since that time in my life. I have learned to meditate and I recommend the book, The Power of Now by Eckhart Tolle. My son, actually, gave it to me after he read it. I exercise, but my eating habits are awful.
How are your symptoms? Are you feeling better? Did you go to a doc?