ive been running a lot lately and i have an annoying pain on the inside of my right knee. looking online it seems to be the medial collateral ligament. its not really pain, no sharp pain or anything. just seems really tight. its never bothered me from doing any weight related exercise. but since ive been running 2-3 miles a day it feels almost like it is swollen. it only feels like that when my leg is straightened. just wondering if anyone else has ever experienced anything like that?