Hi and welcome to HCM.
Its elevation is commonly found in many disorders must most usualy is alcoholic, viral, autoimmune or toxic liver damage
.Also it can be due to excessive execise. The most common liver disorders is fatty liver
which can be found in healthy people, but usually is resulting from elevated blood lipids
and elevated blood sugar. If ultrasounds didnt find anything and viral markers are negative then you have no reason to be concerned. YOu should treat it by gdieatary and lifestyle habbits. Do exercise, avoid alcohol,smoking
, fats,fast food and carbonated drinks. Eat more fruit and vegetables, boiled meat and follow some of hepatoprotective diets. Findings usually improves on such measures. If not, then some medicines can be presribed. Thes are moderately elevated enzymes and some doctors prescribe drugs,some not. I suggest to take it and then repeat tests in few weeks,if there is improvement you can stop it. ymptoms then this is just slight and completely reversible liver damage.
Wish you good health.