Sorry if this sounds like another stupid question, but just something I've been wondering about with my DD. She's 6 weeks old and EBF but in the last week or so I've been noticing that she is often making this kind of lip-smacking noise on each suck, which sounds like she's taking air in as well.
We've had no problems with weight gain, she's put on a pound in the last two weeks although she's on the 5th centile so she's definitely getting enough milk, I'm just a bit worried because she also gets lots of trapped wind (along with mild reflux) and I'm wondering if this is one of the reasons?