Do I suffer from liver damage?

I am 49 year old male, height 5′ 5″ inches tall, and weighing 165 lbs. I have no particular symptoms nor am I feeling bad in any way. I rarely drink and try to eat well. I take no medications. I do undergo regular blood tests just to stay up to date and make sure everything is OK. I have received (and uploaded) my recent lab results and am concerned with certain values, in particular SGOT (AST) and SGPT (ALT). Does it indicate there is damage to the liver? What should I do?