So lately I have been noticing some pretty radical changes in the way I carry myself toward some my friends. I have started acting more aggressive and mean to them for no reason whatsoever. I pick fights as I please and end up making fun of them a bunch of things usually getting them really upset and I really don't feel that bad about it either. Now these are great friends that I have had since middle school, others for a little over a year, but still all great people. Its just randomly as well. No reason why I do it, just do it to some and others get away. I don't like what I have been doing and in the end I am probably going to end up losing a bunch of friends that I don't want to. Ideas? Suggestions? Anything? Don't understand whats going on here.