hi there thanks for your reply
I stretch my hamstrings a fair bit,doest bring on the pain,relieves it a bit as they tighten up when walking.i can reproduce the pain when lying on my back with knees flexed.Step ups also bring on the pain it gets really bad if i lie prone and do straight leg lifts,this was the original exercise that really highlited the problem(i dont do that exercise anymore)
Sitting and driving also bring on the pain.

any ideas
cheers
maddy