my baby was born 36 weeks and 6 days , from when i broke the waters until she was born took 8 hours its been 2 months nearly and i have taken her to get checked up on she seems normal and everything is great. she cries when shes hungry or is in pain of trying to burp sleeps 3 -4 hours sometimes even 5 only thing is her feeding pattern is very weird she takes an hour to feed a bottle this has been like this when i first started breast feeding and then switched to bottle. We thought it was the breast maybe she didnt like it but she this is the way she eats what could be wrong she starts and then stops and breaks for a while then starts again then stops its an on going cycle that takes an hour when she finishes the bottle, shes gaining weight an filling out like she should,do i need to be worried ?