My name is Nick and I have PKU too. I am from Greece but 1.5 years ago I moved to UK to do my MSc and now I work in an IT company.
My story is that my parents got informed at the time I was born that I had PKU so since then I am in a diet and I will be in the rest of my life (unless someone finds a cure). I am 25 now so I am used to the diet and I have no problems with it. My doctors were saying that if you do strict diet while you grow up (while your brain grows up) then you can have a looser diet when you become 18. This is really hard but it is worthy. I have two sisters and one brother and only my little sister has PKU too. So I was the first one.