My 18 week old DD has been posseting more and more over the last two weeks (prior to this she hardly brought up anything at all) and today its like a constant stream from her mouth - we've both had several changes of clothes. She's a very snuffly baby but that doesn't seem to bother her at all, however I've noticed some lumps of snot (sorry if tmi)in what she's bringing up today. She often has a bit of a whinge when she's being sick, but seems happy apart from that.
Should i be worried about this or do you just think its a phase that will pass?
She's breast fed and her weight gain is very good (has jumped from 91st to 98th centile in last 4 weeks)