Jessers,
I used to have that pain too.It was excruciating after my last 2 babies and I went through numerous tests and the docs said nothing.I also used to have blood Sugar problems/issues.Here is a link to where I found the most info.http://www.shaklee.net/kbenergynow/prodWeiScience
I retrained my metabolism and then the cravings/pains were gone.It seems that the pain is linked to the pancreas/liver and the digestive enzymes.
I also used this and my intestines really seemed to shrink/release water.http://www.shaklee.net/pws/library/products/20616_talksheet.pdf http://www.shaklee.net/pws/library/products/20616_talksheet.pdf
If you eat a diet high in animal protein it is hard on the kidneys and liver.You also need to retrain your metabolism to burn fat and not muscle.That is what this program does.If I do not have time in a week to work out I still have full muscle strength even though I am quite old.
Hope this helps.