My question is I feel this is due to my running. Has anyone had this and have you got any advice. Is it because I was running on pavement/road. I am going to get assessed properly for some trainers which suit my feet. Have to say I am nervous about running again!
I see your post is a few months old, so I'm taking a chance that you still visit this site. I am no expert, but I had sciatica with one of my pregnancies. The only other time it affected me was after one run on the treadmill where a great song came on and I got a little too into the run. I was suddenly running like I was on my way to the dance floor! I felt it for a couple of weeks after that. But once the pain went away, I ran again and just made sure not to "dance-run" and to also stretch really well (especially hamstring stretches) after every run. So my advice is to have a knowledgeable person assess your gait/stance, and stretch those hamstrings
Best of luck to you, I know how painful it can be!