I have an issue with my knee that I'm going to toss out there and see if anybody can make any sense out of.
I posted earlier that I had some achiness in both knees. I took a week or so off, and then went back to the track (soft, forgiving surface) this week. All runs were deliberately done at a nice slow comfortable pace.
3 miles on Tuesday: No problem.
6 miles on Wednesday: No problem. A little soreness toward the end of the run, but nothing I was concerned about. All pain or tenderness went away for good after taking an ibuprofen.
Day off on Thursday.
8 miles yesterday: No problem. Again, I had some soreness in my *right* knee about 4 miles in, but nothing that had me thinking about cutting the run short. In fact, the pain went away around mile 6 and I finished pain-free. No pain or soreness of any kind after the run, during the evening, or the following morning. Everything felt great.
So I go in this morning to do a simple 3-miler to close out the week. I didn't even make 200 feet before I got excruciating pain in my *left* knee. This knee had not given me any problems at all during my 8-miler yesterday, and there was no real warning that anything was wrong. I got going, and pretty much as soon as I thought to myself "Hmm, I feel a little twinge coming on in my left knee," the pain had already reached an unbearable level so that I had to stop immediately. The pain was throughout the entire knee area and not localized to any one region. As soon as I stopped, the pain completely disappeared. I messed around at the gym with stretching and cross-training and tried two more times to run. Each time I had the exact same experience: go a couple hundred feet, knee explodes in pain, stop, pain goes away.
As I'm sitting here now, I don't feel anything special in that knee. It doesn't hurt to walk. Stairs are fine. Extending my leg doesn't feel odd. Bending at the knee (like squatting) doesn't feel right and I notice a little something right on the kneecap, but that's more like "mild discomfort" than "pain," and I've never been comfortable squatting so that's not unusual for me. There's no swelling or anything around the knee anywhere.
I'm going to take tomorrow off and try again on Monday, but this is such a bizarre experience that I thought I'd run it by the collective wisdom of FBG runners. I've never even heard of an injury with these sorts of symptoms before, and I'm wondering if maybe it was just some freak one-time thing that will resolve on its own, like a nerve getting pinched or something.