<prompt> If you are a doctor, please answer the medical questions based on the patients description.Thursday - grey knuckles, friday - 3hrs Tennis wout problem, Sunday - I notice her hands - grey and starting to get grey on the palmer side. Daughter 13 yrs of age. On Friday had two large bowl movements. Had bowl pain tonight - had large movement. Otherwise fine. Should I ER? It s 2am. I m concerned  <response>: Hi, welcome to this forum. Can understand your concerns. Stomach pain and increased bowel movements in a 13-year-old child can be most probably due to stomach infection, or acute gastritis. If there are watery loose stools, persistent vomiting, or decrease urinary output then you should be immediate to take the child to a doctor for examination. I hope this will help you point wishing your child good health. Take care. 