What did I do?

OK I was taken down and the other guy landed on my thy with his knee with all his weight. There's no bruise but if I touch it it burns like crazy! And if I push on it there is a groan or squeeky feeling under the skin. Its been a week and is no better. It is just above the knee and doesn't seem to hurt with movement, only when touched or bumped. I know I should see a doc but I wanted your diagnosis first. Thanks!

I forgot to add it is in front, just above the left knee cap. I also came down with the flu the next day, fever, body aches, cough, etc. I thought some of the sensitivity was from that but I'm getting better but the knee is the same.

would that be a deep tissue bruise?