I have actually been experiencing the same thing for the past two years! Everyone thinks I am crazy. I experience heavy cramping AFTER my period ends. The doctors have been baffled. I am seeing a specialist right now who is going to run tests for interstitial cystitis. He also thinks I have vulvar vestibulitis. Another doctor I went to, upon looking at my cervix, said something is causing me to have cervicitis. I don't have definitive answers yet, but as soon as I know more, I'll be sure to post. I'd hate to see your friend go through what I have for 2 plus years. Maybe the sonogram will tell her something too.
I went through that as well, i had endo,severe cervicitis, and stage 1 cervical, uterine, and ovarian cancer. I dealt with the pain for yrs, no one ever had a straight answer until pathology report after my hyster came back. She needs to see a dr ASAP
Now you have me worried! I had a laparoscopy done a little over a year ago. It showed nothing abnormal. I also have had many ultrasounds, showing nothing. Can you describe more of the symptoms that you had? Did you have the hysterectomy because of the chronic pain and they couldn't find anything?