I Have Constant Lower Pelvic Pain,pain When I Go To

i have constant lower pelvic pain,pain when i go to the bathroom in my intestines when i eat i feel sick i just had a colonoscopy done and they said nothing was wrong this has been going on since i had my first child he is now 24 no one will listen i did have my uterus taken out but still have my ovaries and also i go loose all the time the pain gets so bad that i have to go to the bathroom and puke at the same time and i cant be cold during this espically my feet or its worse