Hi L.,
I know how you feel. My son is almost 11 weeks. Believe it or not, I know the nurses tell you to only breastfeed for the first 4 to 6 weeks before bottle feeding because is can cause nipple confussion, I started pumping milk to have some in the frigerator. When I wanted to just get out the house to take a break, I went ahead and pumped. This gave my husband some bonding time with our son feeding him a bottle. My son had no problem taking the bottle around the first or second week. I think because when I was in the hospital they were feeding him formula some until my milk production came. So I usually bottle feed in during the day and nurse him at night. He now just began daycare this week, so he is definitely taking the bottle now and when I have him home in the evenings and and night I just nurse him. I also at least give him a bottle of regular formula because just in case I am not getting any milk anymore, he will be used to that formula. Enfamil is pretty good. Talk to your daughter's doctor first to make sure it is okay.
I know alot of people told me to go ahead and put cereal in his milk, but I don't. I think we are suppose to wait until they are 4 or 5 months before doing so.
Sounds like your daughter is getting enough feeding. Sometimes if they are fussy after eating, could be because they might have to burp or have gas. I know when my son gets like that, I usually give him a little bit of gripe water which you can get that from the expression store at baptist. It helps with colic, gas, and hiccups too. WONDERFUL STUFF!!!!!!!!! Works better than any gas drops I know. But her sleeping patterns will get better. They are just little ones and trying to still get used the living in this world because they have been protected in our womb for nine months.
I did not want my son on formula either but it is always good to give them one feeding a day at least 2 to 3 ounces which I think your daughter should be getting full. Also just remember to eat and drink plenty of water and rest to keep your milk producing.
Hope this helped some.