Feeling like I could float

Today was 1st day of Strong as well as the 1st day of Reach. I did every video and now my brain feels absolutely fantastic! I've noticed this happening when I've done a good deal of cardio and really pushed myself. I sometimes feel as though I have no control over my body and the need to hug people is intense. If you are here you are going to get hugged and a lot. It makes me so happy that it is hard to explain but I truly enjoy the way I feel after a workout.

Has anyone else experienced this from their workouts?