I play a Barb, 1st life it was human, 2nd life it was warforged, 3rd life its a half orc. I noticed that as a half orc the damage return from Frenzy makes my character flinch like hes getting hit by an enemy. That did not happen as a human or a warforged. It does not affect my attacks other than the swing animation getting interrupted. As far as I can tell anyway. I still attack at the proper speed and can move just fine and use my abilities just fine. I don't know if this is intended but I doubt it is as it didn't happen with the other races. Just a minor animation issue i would like to see addressed, its a bit annoying to watch every weapon swing animation get interrupted by frenzy.
Posted in this forum because it seemed the most apt, let me know if there is a better one.