I have a one month old. Since after the meconium her poo is yellow like guldens mustard (to use the mustard analogy), sort of a dark golden. It also sometimes has mucus and always seems to come out foamy or like soda. You can hear it too-gassy, bubbly sound. Does this sound normal? In the last week or so she seems to have gas pain (crying, pained look). The foamyness has been from the beginning though