Hysterectomy in 2001. I bleed now nonstop. Doc says its all in my head. What can be causing this?

MY OLD DOC "BUTCHERED"ME. MY NEW DOC SAYS NOTHINGS WRONG, BUT I BLEED WHEN I URINE AND JUST STANDING UP. IM LOOKING FOR A NEW DOC THAT I KNOW. I JUST WANT TO KNOW WHAT CAN BE CAUSING ME TO DO THIS WHEN IM NOT SUPPOSE TO BE BLEEDING AT ALL?