I love that feeling. I still remember like it was yesterday-
2 years ago when I first got my dog we were out running in the fall time. We're heading down this trail and I tripped over a big stick and went flying in the air. I was in a full out sprint.
I end up flipping around and landing on my back on soft moss. I didn't get hurt at all but I just laid there and started laughing. And my puppy came up and started licking me in the face. I felt like I was 8 years old again without a care in the world. It felt awesome. :)