Everyone knows the phenomenon of trying to hold your breath underwater - how at first it's alright and you can handle it, and then as it gets closer and closer to the time when you must breathe, how urgent the need becomes, the lust and the hunger to breathe. And then the panic sets in when you begin to think that you won't be able to breathe - and finally, when you take in air and the anxiety subsides...that's what it's like to be a vampire and need blood.
Francis Ford Coppola - BS Dracula: The Film and the Legend
So it burns when I PvP, what could be wrong with my PvPness?
In my professional opinion as a healer, your PvPness has over-inflated and swollen too large for your actual skill level of PvP, thus causing the burning sensation.
Not to worry though, I see this all the time. It's perfectly treatable. Just be sure to get in lots of practice dueling classes you don't know very well as well as reading strategies and tips from those with healthy PvPnesses.
In time not only will you find that the burning sensation has begun to stop, but you may notice that your ability to PvP has grown exponentially. Perhaps even to the point that you now cause insecurity in those around you when they witness you flex the new-found might of your now healthy PvPness.
However If burning of the PvPness still persists after several treatments, consult your healer right away. For these may be signs of the not-so-rare, but fatal condition known as "bad."