10 week old NEVER stops wriggling

[StarlightMcKenzie]

Even during sleep.

Is this normal? He never ever stops. Was like it inside too. Is it how newborns build their muscles to get the strength to roll over etc. or is it stimming?

My daughter was like this until she started crawling, it was non stop too. I worried about it and took her to the GP who told me to video it, it was checked and she's fine. I think it was nervous energy as it also stopped when I took her swimming, get it checked at the GP just to be sure but I am sure it's nothing at all. It's mad isn't it?! I still can't believe she can sit and not be wriggling at 9 months. They aren't all like it though.