My 11 month old still flaps her arms...thoughts?

My baby will be 11 months on the 15th. She still flaps her arms, will she out grow this or is this something I need to mention to doctor? Anyone else baby had this and ended up out growing it?

My 18 month old still flaps his arms when he gets excited it’s nothing to worry bout

If it’s excessive, bring it up. Hand/arm flapping can be stimming for autism