My 33 month old loves to line his toy cars up and has a meltdown if one of them fall off or is the wrong way round. He asks me to count how many he has with him so we line them up on the side of the bath and it one falls in or if I put one the wrong way round he gets so upset. Surely this isn’t normal behaviour? He is pretty limited in what food he eats which I heard is another trait. He goes to his nana and granddad dueing the week so has no interaction with other children at all so not sure how he is around other kids