Abdominal pain after getting excited?

El

My boyfriend and i like to tease each other alot and i often get really excited like wanting him so badly, and a few hrs after that and after sex i often get abdominal pain?

Its not horrible but its definitely uncomfortable. Its like all my insides from the belly button down are sore. My vagina doesnt hurt nor does anything else on the outside.

Anyone know why?

Solutions?