my baby is similar. When he is hungry, he cries loudly and can't wait even for a minute. When he is drinking with bottle, he drinks fast for first 5-10 mins, then play around. While he is being breast-fed, his condition is better. However, he seems to refuse drinking with bottle when I am feeding him. He always turns his head to my breast and seems to ask for breast-feeding when I am holding him. He would not behave like that when he is being fed by the father and granny. That's quite embarassing when we are at some place that breast-feeding is impossible.
My BB same as you, I am thinking whether the hole of the bottle is small. I try to enlarge the hole a little bit more, she drink 180ml milk within 8 mins. But I worry it is too fast, she will "chuk". Maybe you all can try to enlarge the hole.
Anyway, may I know how to count 100 days? 3 mths add 10 days or count day? My BB born on 21-10-2008, I count 100 days is 28-1-2009, but my 99 said it should be 31-1-2009.