#asktheexperts my baby is 3 months and 2 days old She startles at sudden sound but does not respond to rattle sound. 2nd problem she moves her pupil in response to an object but doesn't move her head she responds to us upon seeing but doesn't respond upon hearing our sound she looks up when I hold her and wanders her eyes around the house and tilts her head when I keep upright she tends to tilt her head even while trying to roll she tends to tilt her head