In my MT class I got stuck with a new guy that apparently is slightly retarded. After ten + minutes of working on kick catches he attempts to check my kick. I pulled back and ask him wtf he was doing. I kick again, this time he waits then checks the kick. I drilled the very top of his shin. Now my leg is looking like this and more and more blood seems to be gathering down my leg and around my foot. I've had quite a few dings before but nothing that bruised like this before. Is this normal or should I got to the doctor?