Yes - it then snapped. Which probably does not help make you feel better. Few problems since it was sewn back together though (although i have given up football)
Im 95% sure that you have sciatica . Look up exercises online.
Edit - just to add that if it is sciatica, it's not your hamstring at all, but the nerves endings in your lower back giving you referred pain down the back of your leg (or something like that)