LO is just over four months and has a bit of a flat spot on the back of her head. Since this seems to be pretty common, I haven't really worried about it but now I am noticing a bit of bulge/bumps over her ears. Has anyone else experienced this? Maybe it's more serious than I thought? We were at the pediatrician two weeks ago, but he didn't mention anything. Due to reflux, she's still sleeping in her rock n play.

Any advice/experiences would be appreciated!

ETA any thoughts on the boppy noggin nest?