Baby development?

So my son is 11 months old and he does a lot of things very well. He knows his favorite toys, he finds them and plays, he crawls well and pulls up on everything(I think he walks when no one is looking...) he self soothes very well, he sleeps great, we’re a bit concerned though, he has zero interest in putting anything in his mouth. Not toys, food, his sippy cup, bottle. Nothing. He drinks well from his sippy cup but we have to hold it to his mouth. He holds everything, picks it up, switches hands, steals food, but he never puts anything to his mouth. He stole a Cheeto from me the other day played with it and cried for me to feed him one. I don’t know if I should be concerned or? He picks his bottle up he knows where the milk comes out, he squeezes the nipple on it, then throws it. I’m a FTM and just very confused here... He also does a lot of repetitive motions with his hands(like he’s vrooming a motorcycle.) and his head(not like saying no but he lays his head on one shoulder then the other repetitively, if that makes sense?)