Can Endometriosis Cause Lower Abdominal Pain And Pressure In Bladder?

I have no insurance and need some advise. For the past two weeks I have had a aching pain in my lower abdomen. I hurts when I am finished emptying my bladder-this occurs with a urgent need to push. It almost feels like something is applying pressure to my bladder. I am 32 and have a long history of endometriosis. The last few days I have been experiencing pain in my lower back and legs.