Lower back pain and stomach pain after drinking milk?

Intolaerance...: If you have abdominal pain and possibly bloating and diarrhe after milk , it could be lactose intolerance. Cramping in abdomen can simply be radiating to the back becasue of nerves connetion and so called"transferred pain" . Kepp your food diary and pay attention to any further symptoms. I f no better with elimination of milk see you doc.