Hi Just Wondering, have you seen any improvement since your last post?
I have an interest as I have developed something similar if not yet formally diagnosed ... but it was caused by kicking a muddy ball about 3 months ago when not properly warmed up and the symptoms are exactly as described under the 'Gilmores' headings. I have groin pain (not excruciating) when trying to sprint or do sit ups which also pulls on my stomach. I haven't even tried to kick a ball with the problem (right) leg.
My interest is similar to your original post ... the only solutions discussed involve surgery. But in my case the above symptoms through the use of ice and stretching etc are slowly going away. I have started adductor exercises (eg squeezing a ball between knees) without this causing any problems and I can play tennis now without problems except with the most extreme 'lunges' for the ball.
So, my question is with time will the body solve it's own problems here?