I've think the strangest thing I ever did like that was entering a state of meditation while I was running. When I finished, I shit you not, I was surrounded by what felt like a static bubble or something. I knew it was there because I could feel the wind pushing against it, and it startedto have a hard time breathing. I haven't been able to recreate the experience, I rolled my ankle last time I tried
, and it could just be that my clothes created the field by rubbing against each other. Who knows. My brother can make one arm hot and the other very cold. I've been concentrating lately on energy transfer in movements and strikes, which is more physical than mental.
Your probably trying too hard. Most of the time, when you're playing around with mind/body control and perception its already there and you have to just do it. Trying to do it inevitably makes it harder to do it again. Case and point: flexing a muscle during a strike instead of staying relaxed.