Hi A.,
Whole milk ~ indeed, all dairy ~ hurts a lot of tummies. It's not a natural food for human beings, no matter how organic or wholesome it is. Some of the most common problems associated with it are heartburn, tummy aches, and constipation or diarrhea, and it can also contribute to chronic pain issues.
My doctor, and Integrative M.D., suggests that all of her patients avoid dairy products all together. She began her practice as a pediatrician who specialized in treating children with learning, behavioral, and developmental disabilities. She was alarmed at the traditional medical community's recommendation to throw a pill at those very young children, so she began to do research on managing conditions as much as possible with a wholesome diet, supplements, and exercise. Her young patients showed so much improvement that their parents started making appointments with her to manage their conditions, and she now has a family practice here in Columbus.
She is not against medication, but prefers to use it as a last resort. Everyone I know who has sees her has had tremendous success with her Diet for Life plan. If you're interested in it, please send me a private message, and I'll send the outline along to you, with some good tips for eating out and sticking with the plan. It has changed my life.