I had it done 5 years ago. I now have 20/15 vision. The procedure itself was kind of weird, but there was absolutely no pain or anything. I got up and went to work the next day. It was amazing! I'm still amazed at how good my eye sight is now.
And, same here for exercise. My eye doctor said as long as I didn't get sweat in my eyes, I was fine. Good luck!
anne