peg, you might have a bladder infection.
the bladder can also spasm.
when they remove a uterus, it leaves a void. the bladder can shift and be in it's place. you would feel the spasm or cramp in that area.
not a fun topic, but have noticed if your bladder has "fallen"? it's called bladder prolaspe. here is some info and syptoms:
http://www.urologyhealth.org/adult/i...t=03&topic=590