If you have no jaundice or loss of appetite and you are feeling well , ..... then the lab reports of repeatedly elevated Bilirubin values means that you are having congenital( by birth ) condition ( not disease) like Gilbert syndrome
Gilbert syndrome is not serious condition, Your Bilirubin levels will be elevated slightly and it may increase further whenever you body faces stress like infection or dehydration
.The elevated Bilirubin will come down on its own after the stress , but it will always remain a little above general population normal value,
But your LFT enzyme ( SGPT, SGOT ) levels will always be normal
Nothing can be done and nothing need to be done. Realise that it is not a disease.
If your liver enzymes are elevated or Ultrasound
shows abnormality in liver or gallbladder consult a gastroenterologist