My little one is 2 weeks and a day away from being 3 weeks. Recently he’s been so fussy after his feedings so we started giving him 3oz bottles. I went out to go run errands and my sister told me she gave him two 4oz bottles while I was gone instead of his normal 2-3oz and he took it all with no complaints. Later that night I gave him a 2oz bottle because it was only an hour that has passed from the 4oz bottle my sister gave him earlier but he’s still showing signs of being hungry. I’m afriad of over feeding him and him possibly throwing up. Is this normal? If so how do I go about the situation? Please help😭