My son 3 months 2 days old as been much fussy over the last 7 days. We met pediatrician and giving protectis drops ,but still he is not settling when we put him down on surface, he will just be there for 5 to 10mins max and starts crying for no reason.He always wants to be on his mom's shoulder. Also he hasn't given a smile yet when awake, he gives smile only when in sleep. We took BERA test and also met pediatric opthalmologist and both confirmed no issues. He was born on 38 weeks with birth weight of 2.48kg. He is able to track objects which is a positive sign . We are deeply stressed with this social smile thing and also with the crankiness over the last few days.