C-Pap Made My Babies Head Long !! Help

Ri

So my son was born at 29 weeks, (January 17,2018) before he was put on Cpap he had a normal shaped head (I’ll post pics below ) now on cpap for 2 weeks on and off his head is long shaped and he’s lost hair in the front .. will this go away when he’s off Cpap and how long will it take ,?! What should I say or ask his nurses ..