I've noticed it twice with LO. He's drooling a lot since about 10 weeks, which I know is a "stage" they go through. I'm pretty sure he's not teething - my oldest didn't have teeth till 1yr.
But I wonder if it's an acidic tummy? Something I ate? (he's EBF) Like I said, it's only happened today and a few days ago. Then it went away. He doesn't have reflux, I'm pretty sure.
I'm a bit scared to google..
ETA: It's his SALIVA that's vinegar-y, I guess, not his actual breath..? Or is it the same thing, I dunno..
Re: Anyone's baby have slight vinegar breath??