I keep getting a really tight/pulling feeling from behind my bellybutton right down my vag (technical term!) I have been feeling it since yesterday but it seems to be getting worse. I got out of the car tonight after driving for about 40 mins and I could hardly walk. Managed to go for a tiny wee and it eased a bit but still struggling. I have had my urine tested and it was clear so not an infection. It felt like something was ready to explode inside. Anyone have any ideas??