My LO has started getting really frustrated during bottle feedings and sometimes won’t even finish the normal amount that he eats because he’s so mad. And then he’ll be hungry again sooner than usual. My guess is that the nipple flow is too slow for him and he’s getting frustrated. I use Evenflo bottles with slow flow nipples. Their website makes it look like they don’t have any other flow options...I did see some on amazon that were medium flow but I have no idea if that would be too much for him. I might just try them but wanted to see if any of you mamas had suggestions first or have had a similar issue and found bottles/nipples that worked well for frustrated babies. My little dude is 7 weeks old.