Alright so, I'm 19 years old and have been playing sports my entire life. I have never been injured seriously just the usual bumps and bruises. But gradually from high school to now the amount of soreness post activity (mainly soccer) has increased. Recently one and sometime both of my knee's will swell up around 2hrs after this activity and stay that way for a good 15hrs or so. Been reading online about it but didn't really get a clear answer. Really hoping to hear from someone with experience. Just wanna decide whether I should consult a doctor or not.