My 6 weeks old baby prefers bottle feeding to nursing. I birthed her via a cesarean hence she had the bottle for 1-2 days and then my milk started flowing and we moved her to sucking. Her sucking was slow and most times sucks fir 1-2minutes then gets really fuzzy, screams and cries and I have to give her a bottle . I express my milk in a bottle and feed her. I’m tired of expressing, my nipples are sore for expressing and I just wish she will feed directly from my breast like other kids. The doc said her mouth is fine so she has no health conditions. I will appreciate all helpful suggestions