Occuring knee injury need help!?

hey guys, i play alot of football and i am at the age of 16 where i am trying my hardest to turn pro. I have had a lot of injuries in the past including hamstring which was the most frustrating. Anyway i thought this was all gone but in the last year i get an occuring injury which is if I sit on my computer all day for a couple days without exercise i get the worst pain i can imagine when it comes to match days, mostly right knee sometimes left. Example: I do no exercise for a couple days, it comes to sunday i have a game for my local team and i feel great. During the warm up i feel it coming on, it then gets so bad i can hardly walk as the pain is to hard to take. I have in the past ran it off with the help of deep heat, bandages etc. but the pain is like no other. I am sick of this as it seems i have to do a bit of walking everday to prevent this and now its the summer holidays for me somedays i just want to chill out! HELP!

Considering your age and lack of traumatic injury you most likely have patellofemoral pain syndrome...which is a poorly tracking knee cap. My suggestion is to go see an orthopedic doctor to have your knee examined and get a referral for physical therapy. You need to work on the strength of your hamstring, hip, and butt muscles b/c they are weak and you use your quad (front of thigh) muscle too much. You should also make sure you are placing an ice bag on the knee ASAP after doing anything athletic.

I always answer people' knee questions on here as I just had my 13th surgery in March so I am a seasoned knee injury veteran. And I will tell you what I tell everyone else. See an orthopedic (bone and joint) doctor. He/she will discuss your symptoms with you and take xrays and an mri scan. The xrays will probably show nothing, but the mri will give you your answers. The knee is a very complicated joint with 4 main ligaments and tons of cartilage including the meniscus. People on yahoo answers will give you their best guess and say "I had the same thing!" but you will never know without getting images of your knee taken. I am very knowledgeable on the subject, but I wouldn't begin to tell you what is going on without looking at images of your knee. So please, see a doctor and get it checked out....the earlier the better....you do not want to be like me and have 13 surgeries and huge scars...trust me. Good luck to you.