My son is 16 months old and I feel like we should understand him more. He use to say momma, dada but now everything is aye or ayeya. He rarely says momma or dada and when he does its like mumbling mamamammamamama. Anyone else have a toddler they can't understand. He was tounge tied also for the first 6months. I think it's delayed his speech but not sure because I have no other friends with boys.