Hello! Thanks for using healthcaremagic.com I read carefully your question and understand your concern. I think your baby girl have Lactose intolerance. Lactose intolerance is a common digestive problem in which the body is unable to digest lactose. Lactose is a sugar found in milk and dairy products. The symptoms of lactose intolerance are caused by undigested lactose that passes from the small intestine into the colon. There is no cure for lactose intolerance, but most babies are able to control their symptoms by making changes in their diet. Some cases of lactose intolerance, such as those caused by gastroenteritis, are only temporary and will improve in a few days or weeks. Other cases, such as those caused by inherited genetic failure or an underlying long-term condition, are likely to last a lifetime. Change your baby girl diet. In most cases, reducing or avoiding sources of lactose and replacing them with lactose-free alternatives is sufficient to control the symptoms of lactose intolerance. The exact changes you need to make to her diet depend on how sensitive the baby is to the lactose. Some babies are able to tolerate some lactose in their diet without any problems, while others experience symptoms after consuming milks or drinks that contain only a small amount of lactose. If you decide to experiment with what you can and can not make your girl eat, be sure to introduce new foods gradually, rather than all at once to her. This will help her to get accustomed to any food that can be sensitive and identify any problems that cause problems. Eating less products that contain lactose, or avoiding them completely, may lose her certain vitamins and minerals in her diet that need to be replaced by other foods. If your child are extremely sensitive to lactose, talk to your doctor about your diet. You may be referred to a dietitian (an expert in diet and nutrition) who can advise on what foods should be included in your child s diet to substitute foods rich in lactose. Kind Regards, Dr. Oscar Martinez