Hello! My son was born last October. In late January, I started having chronic diarrhea, weight loss, low-grade fevers, and night sweats. I met with several doctors early on who were not specialists and they started the testing process; I finally met with a GI doctor on March 31 and I go in next week for a colonoscopy/endoscopy. They suspect Crohn's or Celiac Disease. The first doctor wanted to put me on Flagyl, just in case I had a parasite that was not showing up in the stool cultures, but you can't take Flagyl while breastfeeding so ignored the advice, hoping the symptoms would just go away. The GI doctor is comfortable waiting until after my tests next week before having me take Flagyl. My biggest concern is whether my diarrhea would be interfering with the amount of nutrition my baby gets through my breastmilk, especially since I've lost 20 pounds of weight? Part of that weight loss is decreased appetite, but I'm sure it comes from malabsorption due to the diarrhea, and probably a lot of the weight loss is from breastfeeing on a reduced calorie consumption. He appears to be thriving; he has always been in the 90th percentile for height and weight, he nurses often but not any more often than before the diarrhea started, and sometimes I have so much milk that I squirt. So I worry most about the quality of the breastmilk than the quantity. I haven't specifically asked my GI doctor about this issue, but he is aware that I'm breastfeeding; he is young and does not have children of his own, so I think people here in this forum will be more knowledgeable. Thanks so much!