My subject line is the best way I could think to describe it. One of my girls (15 weeks) "pooed" (for lack of a better term because you can't really call it poo) clear liquid that has these strands of cloudy white in it. It doesn't smell particularly bad and she doesn't seem to be feeling sick. She's her usual energetic self and was eating and drinking with everybody else. I saw her squirt one of these out right in front of me and then I saw another little clear puddle with the white in it outside too, so I'm not sure if that was her again later, or another one of them. Any ideas what this is? Should I be concerned?