my baby is five month three days old with 7kgs..she is exclusively on breastfeeding..10 days back she had loose watery dark green color stools and low urine output hence we had to admit her on the hospital for three days she was on IV fluids and was back to normal but the loose watery stools were not subsided and doctor said will take little time ..now it's already one weeks but she continues to have loose watery and sometimes mucus and sometimes frothy stools...why is it happening