Talk to Liver on LFT,LIVER TEST

I was diagnosed with wilson disease due to increase in urinary copper later Dr conducted several test and said it may be Viral or error in the report so no wilson.However he suggested me to have LFT after every 8 months.I did it yesterday and my sgpt is raised in every report slightly. My history:Age 18,weight 90KG,Height 5,7 no other disease.