14 week old DS is EBF and poos have been 'normal' since birth, that is they have been yellowy with bits in. For the last few days however there have been no 'bits' in the poo, it is just a very runny, yellow liquid. Could this be diarrhoea? Or is it just another form of BF baby poo?! I can't think that I've eaten anything different in the past few days and with regard to DS, he seems pretty healthy in all other respects.