I believe you are talking about Crohn's disease. I got this from Wikipedia:
Crohn's disease is an illness that causes the intestines, or other parts of the digestive tract (the parts of the body food goes through), to become swollen, and sometimes develop ulcers (holes). People with Crohn's disease often have pain in the gut, diarrhea, vomiting, and weight loss. Crohn's can also cause skin rashes, arthritis, and swollen eyes.
Nobody knows exactly what causes Crohn's disease. In the disease, the person's body attacks itself. The immune system attacks healthy parts of the digestive tract. This causes inflammation, or swelling, in the digestive tract. Therefore, Crohn's disease is one of two inflammatory bowel diseases and one of many autoimmune diseases.
Good luck.
I check at least two to three times a day(morning afternoon , two hours after dinner) . My numbers range for 60-125. Anything green at this point doesn't stay down. Dairy in small dose stays down ok .. Fruit with skin will not at all stay down , that's all that I found so far.
Most T2's have a problem keeping BG down to normal range. Perhaps some more info from you would help
What are your BG numbers, when do you test, what drugs are you on? What do you eat that stays down and doesn't?