I have a chronic pain near or in the groin area because it also feels like it is just before the excretion area. I had it diagnosed by a VA doctor and they couldn' find anything. I have had this chronic pain for about 15 years about once a year or once every two years; but now in my mid 40's it is twice or more a year. It is so bad I cannot even sit or walk...it comes out of nowhere and I am paralyzed with excruciating pain. it goes away by itself after a minute or two.
I am very fit, 6 ft 1 200 lbs but have back problems since I was a teen and need a really firm bed or a floor. I always exercise during the week and eat healthy foods like almonds, walnuts, whole grains, fruits, vegetables, chicken, drink water, juices. Is this some type of early prostate symptom, muscle spasm? it is a focused pain always in the same spot
Just a stab in the dark but I wonder if it could be something called Iliopsoas syndrome. It comes on very quickly and is caused when the iliopsoas muscle suddenly contracts causing it to tear or rupture. Since you recover quickly you must not be experiencing a tear but perhaps somehow you tweak a nerve.
"Athletes at risk include runners, jumpers and participants of sports that require a lot of kicking. Also at risk are those who participate in strength training and weight lifting exercises that require a lot of bending and squatting."
Next time it happens you might want to really try and analyse what you were doing just before it happened. Did you move in a different way? Were you doing some kind of exercise? Had you done anything different that day?