DS loves drinking from his bottle and seems to be very impatient during his feedings. (At least, that's how I see it.) If I have to pull the bottle away to burp or do something with DD, he cries and cries. He stops as soon as the nipple is back in his mouth. After he finishes the full bottle or shows no more signs of hunger, he's fine.

I assume this is normal or at least not harmful to him (?). DD does not do this.
I'm seeing the Ped on Wednesday for their 2 month appt so I'll bring this up.

Anyone else deal with this?