My son had the same reactions over 20 years ago now. I am lactose intolerent. I have terrible stomach cramps if I drink any milk products with more than 1/2 to 1% fat. My doctors suggested I switch the whole family, if necessary to Soy Milk Products. These have worked out great, but sometimes a little harder for babes to digest. For the bottles, they suggested I add a bit of corn syrup. This worked great for me, but you need to consult pediatrician. Due to all the food allergies and consequences there of; new mothers are taught to feed babes quite differently now.