Hello, I was playing a soccer game last Thursday, and I hit my knee a few times and experienced pain for the rest of that day and the next day. As it was getting better, I hurt my knee again and once that started healing I hurt it once more. Now, my knee hurts a lot. It is pretty swollen, It hurts all around the knee cap and hurts when I touch it like a bruise, although there is no blue, red or purple. It hurts on the knee cap as well when I touch it and it hurts when I bend my knee and walk. Should I see a doctor or just rest it off? How do I know at what point I need to seek help and what could be the injury that I sustained?