My right knee has hurt after the past two runs, the second more so than the first. I did a near two mile run/walk yesterday and today, thought it smart not to run. I’m really trying to figure out what I’m doing wrong. Do I need to strengthen my quads? Do my sneakers need replacing (I’ve had them since end of May/early June)? Is it my stride? Am I running too much (about 3 – 4 times a week right now, between a mile and a half and two miles). Maybe its a combination of all of the above…either way, if this pain doesn’t go away, its off to the doctors I go. I’ve put too much effort and time into becoming more physically fit, to injure myself and have it all go to waste.