If you haven’t had any medical problems you might have moderate PKU or hyperphe. But, it kind of depends on what you eat. Even though you aren’t on diet you might not be eating enough phe to have high enough levels for major problems to show. But if your eating meat that’s has a lot of phe, so then your levels would probably be high. Also I’ve talked to some people who have been off diet and are now back on. Alot of them said that they never realized how many problems that had that were due to PKU until they went back on diet and the problems went away or weren’t as bad.