It is normal for a one-month-old baby to have greenish stools, especially if they are breastfed. Introducing solid foods can also change the color of their stools. As for relieving stomach pains and gas, there are various causes that could be contributing, such as lactose intolerance. Pay attention to when the discomfort occurs and consider factors like feeding patterns and weight gain. If your baby experiences severe vomiting, fever, refusal to drink, or lack of weight gain, it is advisable to consult a doctor. There are also strategies like skin-to-skin contact, playing soft music, using a baby carrier for walks, and ensuring proper breastfeeding techniques to help ease your baby's discomfort.