Hi, I have never heard of those kinds of symptoms with PKU. If you live in the USA there is a mandatory blood test done while in the hospital at birth that would determine PKU. PKU is not something that you see symptoms of until much later in life (like around school age). It is a genetic disorder that affects the childs ability to use phenalalaine (SP?) which affects brain development over time. Your baby has probably already been tested for it and you would have know if he had it. THe doctors were calling us in for more test within a week of birth.