Flat head?

I’m terrified that I think I’ve found a flat spot on my baby’s head. We do tummy time and she not always on her back but she almost has an indentation in the middle of the back of her head...

She was born with a duel hematoma on each side of her head (her left side was way worse than the right. The right has almost gone away). I’m worried this has made the flat spot worse.

I’ve got awful PPA and have already scheduled an appointment and bought a flat spot sleeping pillow but I’m really hoping for some support/comfort for moms that have similar experiences.

How worried should I be? Should we just opt straight for the specialist? My first daughter had a hematoma but nothing as severe as my newborn’s.

Here you can see the hematoma more clearly on her left side.

Here you can see the indent