How much is a one week old baby suppose to eat?

Lacey
Okay today my daughter. Is one. Week old...she has been screaming. And crying every one or two hours acting like she is starving to death.she doesn't do this all the time but it's like one day she does good and eats every three hours( like the doc said she is suppose to do) but the next she pitches a fit and acts like she is starving to death. The pacifier isn't working because she just spits it out. The only way to make her calm down is a bottle and she gulps it down so FAST!! She is currently wanting two and half to three oz. Every time she eats. She acted the same way when we got home from the hospital...she was drinking one oz. In the hospital but when we got home she wanted two oz. And she kept me up all night for two or three nights. Just screaming and I didn't know why. She also starts crying when she has to go poop I've noticed. She poops a couple times a day but every now and then I think se gets a tummy ache and she just "pushes" and crys...old what to do...is this normal? Is it just her going threw a Growing spirt or something? Idk the days she acts like this makes me very worried and frustrated and even more tired. The doctor said she probably has her days and nights mixed up but I think he jut had a busy day and didn't take a good look at her. He didn't even discuss her jaundice issue. Somebody please tell what's going on with my baby:( right now I'm a fustratsed, tired, and worried mom a:'(