Hey Ladies, have been meaning to jump in this thread for ages and will promise to try and catch up with everyone.

Mainly posting today for Vic, as I too have a bub with a larger head in the 97th%.

Aaron was born with the same as CJ a 35cm HC however his last measurement which was on the 19.11 his HC is now 46.4.
He has had a couple of U/S done as his fontanel is still large and slightly raised.
We found out a few months ago that Aaron does have hydrocephalus and had an MRI to confirm how much fluid was there...however touch wood at this stage no intervention is required and like yourself we just continue to monitor his head growth
Just keep an eye on things like you said and if you find any change that would indicate a head ache see your paed.

BTW this is not trying to scare you in any way