Hello, thanks for asking on healthcaremagic. A baby six week old might pass stools several times a day or maybe once every 2-3 days. This is the normal way. However if the consistency of stool is unusually hard it might suggest constipation. Babies at this age might find passing stool as a stressful event and hence the crying. You might try colicaid drops or any other simethicone drops. Giving gripe water like Bonnison from Himalaya might work well. All in all kindly make sure you are not adding less water and more formula to her bottles. Ratio should be correct. In the end, a colicky baby might have colic for a few months and its normally seen in many babies, it generally passes out when they start crawling. They find it easier to pass gas while they start turning and crawling. Some drops with amylase enzyme alongwith simethicone also work best for some babies. Hope i helped you out. Thanks.