Anyone help about my knee plz?!

Anyone help about my knee plz?

10 years ago i hit my knee on the gorund playing football (soccer), it got swollen up & stretched out a bit, went to Hospital & they said nothing wrong, duno if if it was MRI scan or what, but since that year my knee (left) is a bit different to my right knee, like the knee is bit down my leg, sort of stretched out, whenever i do any activity like football (Soccer), running , etc the knee always gets a bit swollen up, i can bend it fully but always feel the stiffness, i dont know what to do, is this really bad? i mean its not like an infection is it cuz its been 10 years & i dont have trouble waking or anything its just the born in the knee looks lower to my leg & strethed out, & also like i stated swollows up a bit after i do sport, any suggestions? thanks.

See your doctor, tell them your worried about it, and if they cant find anything they might refer you on to a specialist.

I dont think its good that you knee does that, it sounds like theres something wrong,

But , like i said, i think you should see a doctor, because they'll have the best advice and knowledge, and you never know it might have been broken, but they missed it, and as result it may have mended itself, but on a wrong angle or something.

Cheers