My 11 month old has had what looks like mucus in her diaper, but not always poop. She has a really bad yeast diaper rash right now, and is grumpy, but she'll play and then suddenly start crying, so I've been checking her diaper each time. I'm not sure if its the diaper rash that is causing the pain, or passing the mucus. Is this cause for worry? I've searched online, but can't seem to find anything helpful.