hello..my son is 3months and will be turning 4 next week...he cannot lift his head and could not roll over till date...i am a little bit worried..is he weak or have an health issue..please help

A. Mostly Why the age of 3 to 4 months kids normally learn to have a stable headache and lift your head and roll also since you are saying that your child is unable to reach that milestone as of now just wait for a week more or 10 days more and try to help your child if your child still does not learn to roll or lift the head then you just consult a specialist to have a thorough checkup of the child