Bilirubin has been high on and off for 2 years. Did have a fatty liver but enzymes are normal since June could they b high due to something serious?

Liver injury? Elevated liver enzymes indicate liver cell injury (enzymes leak outside the injured cells). Fatty liver disease (steatosis) can become more active when some of the liver cells can no hold no more fat so they rupture and thus add an inflammatory component to the process (it becomes steato-hepatitis)
May be "normal" Some people have somewhat high levels of bilirubin. If the levels are not increasing, and you're otherwise healthy, I wouldn't worry about it.