Several years ago I suffered a herniated disk. It was at L5 S1 on the right side. it was a moderately sized bulge but the placement was very bad and was pressing on my nerve giving me sciatica down my right leg. I mostly recovered without surgery and the sciatica went away. I had another MRI later and it show that the bulge had gone away.
I recently saw a physical therapist for my back. I just wanted to see them for a check up. They gave me some stabilization exercises and some stretches. Overall my experience was good. However, they saw that my hamstring flexibility was extremely poor around 80 degrees. They recommended I stretch my hamstrings to a healthy 40 degrees and they gave me a stretch where I place my leg on a wall and gently straighten it to stretch.
I was highly motivated to get to 40 degrees and stretched everyday twice. After about a month I started experiencing sciatica down my entire right leg from stretching. I stopped and the sciatica went away after a week or so. I also lost all the flexibility I had gained after a month of stretching.
Does anyone know why stretching is causing me sciatica? To me this seems like a real mystery to me because stretching alone does not directly to anything to my back or the disk which is what causes sciatica.
Secondly, can anyone recommend a way that I can get my hamstrings to 40 degrees without causing sciatica?