Pelvic muscle pain?

Went and had an internal exam today. My muscles are fine and working well but when she pushed on my pelvic floor muscle on the right side it hurt like hell..

DTD has always hurt me in this area too, its been a long term problem. I've been to doctors before and have been fobbed off saying its just because I'm not ready before DTD. It doesn't matter how ready I am the "gettin it in" is always agonising, as is pressing on it, it's just one spot.

Is there anything that can cause it? The ultrasound didn't show anything and she couldn't see why it would hurt even when I relaxed it hurt..

Any suggestions? It's a long term problem I'd love to get rid of lol