Have you guys tried eating foods based on your blood type? There's a good book on the subject which shows which foods are beneficial/harmful for each blood type. Food allergies was a precursor to my digestive problems. But I continued to eat what I wanted despite testing positive for wheat, corn, tomatoes. I have paid dearly with a spasmodic esophagus and colon...I now avoid those foods that I know are bad for my blood type...and I'm getting better with the aid of red clover and acupuncture, and prilosec.