Ruled out appendicitis and kidney stones. right side stomach pain and side pain almost leading to back. this pain comes a goes. dull pain. a while back i remember my liver enzymes were elevated but no symptoms . is this possible liver disease ?

Many things possible: If a teen guy has uncomfortable right tummy pain and is normally in good health, some possibilities include: sports trauma, appendicitis (usually has fever), liver problems, gall stones, kidney problems, excessive constipation, stomach flu, bowel inflammation, intestinal infection, nerve irritation, spine issue, rare tumor, etc... Doctor can follow up and recheck as needed.