Sorry to hear of the trouble. Good to note she is feeding well and not dehydrated as indicated by urine output. Maybe warm weather are heading to fluid losses leading to less amount of stool. As long as consistency of stools are fine, sometimes babies go between 2-3days without stools. If goes longer without stool, with either blood in stools or small dry pellet like stools or persistent vomiting with or without reduced feeds, then may need firstly medical review and then consideration for bloods/stool softeners.

This problem is mostly due to gases....will give you solutions 1. Increase Burping time to about 20 min...after each and every feed 2. Tummy time...you can see video on Google 3. Stomach exercise...before feeding flex and extend knees over abdomen 4. No diper in day time 5 . you yourself drink lot of water to increase water content of breast milk 6.Even after all this if still gas issue not solved then give Colimex drops 0.5 ml when severe colic