Knee pains. should I be worried?

I get sharp pains in both of my knees after I run. I'm on my high school cross country team. they hurt to the point where i hobble down stairs from the pain. could more calcium intake help? I don't like going to the doctors for this type of thing because nothing ever gets solved for weeks. and if its just calcium defficiency, i dont wanna pay to hear that. help?

Answers:
pains in the front of the leg its splints, knees you've got a crack. or maybe your still growing which i think your not. your from the states and over 21 without hmo?. right ok as i believe in free medicare for all heres what you do, get your mates to dump you outside of the nearest hospital it is the law in the states they cant refuse emergency treatment is it not?. get them to check you over then once you find out whats wrong go to your doc with the diagnosis and get them to give you a script for the proper drug should you need it.

it could be a number of things. you age is also a factor. could be growing pains, however if it directly in the knee it could be an cartlidge issue, acl, mcl, or pcl (the three later being ligaments). In any case if the discomfort becomes unbearable you should consider seeing a doctor.
Damaged cartilage? maybe you should stop for a few weeks and see if it improves?
you should if youre not an oldie. yes, more calcium intake helps, and so does doctor check up so you wont be guessing what the problem really is. and i do hope it is just calcium defficiency, or you will be spending more than you should when it gets worse. :)
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