I am nauseous when hungry, stomach pains when I eat anything.  I have type 2 diabetes, high blood pressure.  I also have low b12 (I am on my 3rd shot)  tired a lot of the time.  Also I have a elevated white blood count.  I have lost 23 lbs in 3 months.  I am scheduled for colonoscopy in 3 weeks but could use some relief now or at least a idea of what might be wrong.
Welcome to Chat Doctor. If you are having long-standing diabetes like more than 10 years you are prone to get more side effects. Given significant weight loss. You must get checked for Gastroparesis where your stomach will not move properly leading to nausea. This occurs from the neuropathy from diabetes. You should strictly control your sugars to stop the progression of Gastroparesis and neuropathy.