Your baby seems healthy and happy. You haven't much to worry about.
Does your baby cry for long periods of time?
Does your baby seem congested all the time?
Is feeding prolonged and difficult for your baby?
Does your baby have a positional preference?
Is sleep marked by frequent awakening and crying?
Does your baby suffer with frequent hiccups?
Does you baby spit up or vomit?
Is your baby growing well?