My DS is 3 months old. I just started having nipple pain and noticed his mouth is "thrushy". I also noticed a change in his BM couple of weeks. He is going for 3 days then saving it up for me for about a week. It's thicker and less milk solids noticed and the thrush seems to have made it look a little like sourdough starter. Is the other stuff normal? I don't remember this with DS #1 but he pooed 2x a day for a year.