Gemma, My name is Becky and I am 26 years old with Classical PKU. I seem to be in the same place as your boyfriend. I am trying to be more strict with my exchanges. I have not watched my diet real close for the last few years. I have some differce when my levels are high I only feel like sleeping, instead of not being able to sleep. I go to a clinic once a year and boy do they lecture me if my level is high. I am really trying to do good on my diet so one day I can have a family. My boyfriend does not have PKU but is supportive.