Your problems don't sound like they are necessarily associated with type 2 diabetes. Could it be type i diabetes which usually makes someone ill until properly diagnosed, from my experiences. My daughter's classmate lost weight and was overheated in school and was soon diagnosed with type I diabetes. The diagnosis saved her life. What are your blood sugar numbers? Are you testing daily or anything?
If you aren't able to eat much at all the numbers would be going lower. If you have lost 20 pounds the numbers would be declining.
There could be something else causing the upset tummy, however cabbage can cause gas problems. If you are doing well on vegetable soup, keep eating it. Stress can cause a rise in blood sugar numbers. Medicines can cause a rise. Sounds like you have an irritable bowel from something, but I am no doctor. I certainly have had more than my share of upset tummy from stress, See the doctor. I cured my irritable bowel on my own because my doctor couldn't help me. He left the medical profession soon after that. Yes, we have so much more knowledge than years ago and I have witnessed huge successes even from type I diabetics. You can get better, but the meds are not the first line of treatment. They are just an aid after you learn to enjoy a low carb diet and exercise more. if this is not working, please get back to the doctor and get help. Dorisena