I am a 32 yr old female and I suffer from frequent urination. Sometimes when i HAVE to hold my urine,and my bladder " cramps",it is very painful and the "cramping" lasts for several hours up to a couple of days. Is this a serious problem or is it due to age, and motherhood? I have been to my family Dr and he treated me for UTI. The "cramping" does not happen often, but when it does it makes it almost impossible for me to even stand up straight. PLease shed some light and help, Thank you.