After I masturbate for a long time and ejaculate, I get an intense cramp on the right side in my abdomen. The cramp is about 3 inches below my belly button and 4 inches to my right. The cramp goes away in about a minute. It feels just like a leg cramp, but it is in my groin. It is on about the same level as the top of my hip. It feels like it is just a couple of inches below the skin, not very deep down. This happens about once a week. I masturbate at least twice a day. I am a male, 60 years old, have diabetes and high blood pressure.