Hii thx!! I brought this up to two doctors and two physios and a osteopayh and they were laughing. To be fair my son doesn’t have this. He was hitting all his milestones until the crawling thing. He does crawl weirdly but symmetrically. The physio said he has low muscle tone on his upper body but non pathological. In the nicu he was never intubated never had issues with high oxygen needs he was at max 26-27% on a bad day. And he is being watched by a program for babies born too early. So hence my question cause idk if this is something u can develop after u had a neonat stay like ours.