Flat head and ear

Since birth my son has had a flat head. I’ve asked the hospital and his pediatrician about it and they said it wasn’t too bad and that it’ll round out eventually but I don’t think it’s rounding out. He’s mostly on his tummy during the day or in the swing or bassinet when asleep and on his back at night and he sleeps every 2-4 hours when I was pregnant with him he was laying with the back of his head on the placenta he also doesn’t have hardly any hair in that spot my guess is because of that as well

Also his ear have these raised areas that have been there since birth (circled in picture) they look like as if tiny tiny BBs are in his ear and that’s what they feel like anyone know what this could be I’m bringing up to his pediatrician next visit