My sons 3 weeks old and I’ve noticed after a good latch and amount of time breastfeeding, he’ll let go. Ill burp him and then I’ll try to put him on again and he’ll open his mouth and like shake his head around, close his mouth but not latch, and then keep shaking his head and crying. Kind of like he’s searching for the breast but it’s obvious he feels it. Does this mean he’s done? Cause

Sometimes I’ll give him a minute and he’ll eventually latch back on.