4 year old with ocd? Posted in another group as well

Is that possible? Or am I crazy? My 4 year old does certain things like fastening his shoes over and over until he gets the strap lined up perfectly with that Velcro. Or when he spreads his blanket to have dinner in the living room he won’t eat on it until it’s perfectly spread with no wrinkles. Or when he eats Doritos he refuses to eat the ones that are curved. When he drinks caprisun he has to get every last bit of the straw wrapper off of the pouch or he won’t drink it. Is this just normal kid stuff? I’ve thought about asking his pedi but I don’t want to sound crazy lol

Edit to add: he also repeats almost everything back to me