Re: Sever abdominal and back pain. Please HELP!
This might be a long shot, but I know how it is when you are desperately searching. I went through much the same situation and it finally turned out to be endometriosis.
I had to go through all the same diagnosis's first, the GI system, all the organs, the IBS's...on and on.
Endometriosis can create pain anytime of the month, but usually is worse during your period. The pain can migrate from the site it attaches to up the back down the legs, and around the sides. It can be from mild to debilitatinly painful. It does not show up on any scan, MRI, CTscan, ultrasound, sonogram, nothing.
May I ask how old are you? 6-10 percent of women get some form of it, many never noticing, others living in severe pain (like me).
The only way to properly diagnose endo is by use of laproscopy, a camera inserted into your belly through a little incision.
I wish you all the luck