Nagging Hamstring Injury

Did you hurt it near an attachment point, or in the belly of the muscle?  Do you have a leg length discrep?  That's the cause of my own hammy issues, and a lift helps reduce problems due to running.

No idea what your issue is, but you might want to try cross-frictional massage if you haven't already.  I found it much more effective for my hammy than just foam (or pvc) rolling.  Some say eccentric strengthening helps, but I didn't find it to help.

Good luck!

I have also been fighting a hamstring injury for two months.  Luckily, in my case the initial strain was not that bad (I felt something and stopped immediately but I was ok to still walk without a major limp and I did not have a pain while sleeping). 

I have also been going to physical therapy for five weeks (after three weeks of self diagnosis and the bad cycle of trying to run and feeling it then waiting longer only to have the same issue) and I am now starting to build my running again.  I still notice my hamstring but it is not necessarily pain.  I think sometimes when you come back from an injury that the area affected is "reawakening" and so it may not mean that you shouldn't run on it.  Instead it just means that you need to take things slowly and continue listening to your body. 

So in the end, I suggest that you listen to your body but see if what you currently feel is different than when the injury occurred.  Is it just scar tissue/tightness or is it the same symptom which caused you to stop.