For the past year, I had 4 LFTs wherein the direct bilirubin is either in border or just above it. (For eg 0.37 when 0.3 is upper limit).All the other liver enzymes are well within normal limits. I used to have whiskey 2-3 times in a week, 100ml per session for some 5 months. After the bilirubin elevation i stopped drinking. Only very occasionally like once in a month now i take 100-120ml. What does my LFT indicate. Should i have a ultrasound scan. Any serious issue is there?