About a month ago my hamstrings felt tight every time I would stand up from sitting for an extended amount of time but it wasn't painful. Then about two weeks ago, a few days before my oly, I started to feel a little pain, mostly when walking, but it didn't affect my bike/run. A 1 or 2 on the pain scale. I raced my oly with no pain whatsoever, though felt it that morning. Had 9 days off after that (only doing a pretty hard hike in CO a week after race). And now did a run yesterday and easy 20 on bike today. Run was fine but felt it on my bike, about a 2 on scale. Now I feel it constantly when I'm walking or even sitting. I feel it in the middle of my hamstring between my butt and knee. I have my first HIM in 11 weeks and wondering what this might be and how to proceed with my training. I'm going to be a little undertrained as it is so nervous about taking any time off. Any help would be appreciated!! Thanks.