In a prospective study of 23 newborns with preauricular skin lesions, four (17 percent) had abnormal findings on brain-evoked response audiometry. 1 Another study of 178 newborns with isolated preauricular tags found that 23 (13 percent) had mild to moderate sensorineural hearing impairment.
Hunger is one of the most common reasons why your baby will cry (CKS 2014), especially if she's a newborn. The younger your baby is, the more likely it is that she's hungry. Your baby's stomach is small and can't hold very much. So it won't take long before it empties.
Head shaking is quite common and a variety of this repetitive behavior is a baby hitting his or her head, something you can read about here. Some of the more common reason a baby is shaking head are: Many babies start doing a head shaking thing as part of learning to get control of their body. They may be imitating you or may have discovered they get lots of response from you when they try this trick. This, of course, is the real sit-back-and-enjoy reason.