I feel the same. My baby girl is super low. She kicks and it feels like she is trying to come out. Scares me but the Dr said it's fine as long as I don't have contractions. But she does it all day..
As baby gets bigger ive noticed different movements. He's getting stronger too so I can tell the difference now between a kick and a flip. Or a roll and a summersault. Lol. Plus as a poster said above it'll differ depending on the position too.
My baby boy does the same thing! I have never felt him higher than that at all! He loves to stay down there haha. Sometimes it gets uncomfortable, but other times it just feels like flutters. He also kicks down low too. I have no idea what's going to happen once he gets bigger bc he can't get any lower than he already is! Right now I am 24w3d.
Was having similar issues the doctor told me it is still the baby moving but it feels different because of the position he is in at that time. Hope this helps out a little bit.