How you’ll know if you have a hamstring injury:
You’ll know you have this if you’re experiencing pain along the back of your thigh, with the muscles there feeling tight and / or weak. You may also feel a sharper pain just below or in the buttocks, where the three hamstring muscles originate.
How you probably injured your hamstrings:
If you’ve gone out too far, too soon, or have glutes and back extensor muscles that could be strengthened, or if you’re not very flexible, you could be one of the 7% of runners who pick up a hamstring injury.
What you can do about your hamstring injury:
Reduce the amount you run, or even consider taking a break from running for a little while. If you continue running, stay away from hills and speed work, as this will put more stress through your hamstring muscles. Work on your flexibility, and look at strengthening your glutes and back extensor muscles. Soft tissue therapy can help with stretching and flexibility for the hamstrings, and taping can help with inflammation and support.