Mystery groin pain

Hi,
I was wondering if anyone has any idea about what my pain could be.

Basically its a pain that occurs an inch or two above my pubic bone and an inch to the left. It only ever occurs when I run (on grass or road) and never never at any other time. Sometimes it ‘comes on’ after 2 mins of running, sometimes if I’m lucky it doesn’t occur at all. There seems no reason why it should occur one day and not the next. It is localised and is sore if i give the area a good prod. The pain stops as soon as i stop running. If I’ve prodded it a bit it may be a little tender/sore the next day, but normally there is no pain there at all.

A physio has assessed my flexors and they are ok and a surgeon has ruled out a hernia. The surgeon won’t give me a scan due to the location as I’m of child bearing age and he suggests I visit a sports physio.

I rested for a year then I tried pilates to strengthen my stomach muscles, but the pain is still there when i run.

any ideas before I splash out on a sport physio!

thanks