Ummm im not sure if everyone has this or not, so ill ask. When i want, i can make a tingly wierd feeling go all along my body but its easiest to do it in my arms, if i do it long enough that part of the body shakes and i get somewhat tired. It also makes my hits alot more powerful however i cant do it in the heat of the moment only if i have time(2 sec minimum) to get it going. Is this adrenaline or does it work that way, i am very curious to know what it is, because i know its nothing like chi or anything.