Your history and reports suggest that you may be suffering from a harmless type of jaundice called as GILBERT SYNDROME
It is a inherited metabolic disorder
and a common cause of unconjugated hyperbilirubinemia.
Although other liver enzymes are found to be normal in this condition, but they are high in you ,may be because of other reasons,which should be explored.
These other reasons could be alcohol,abnormal lipid profile
,persistent intake of herbal supplements etc.
You must consult a Gastroenterologist
and get investigated properly to arrive at the diagnosis.