Briefly, he was diagnosed with a fatty liver 2 years ago, had raised liver enzymes then so this is nothing new. He had liver ultrasound and that came back fine, just showed fatty liver. He was told to lose weight (he wasn't obese or anything, just a family history of high cholesterol and stores all his weight in section on tummy) which he THINKS he's done but I still think he has about a stone to lose. 
Anyway he's gone back for a check-up (a different doctor) and his blood test has just come back showing 'raised liver enzymes' STILL. The doctor wants to do another ultrasound to - according to receptionist - 'just check there's nothing else going on'.
Bad timing as this is going to hang over us over Xmas now... and I don't know what's going on!!! She was nice on the phone and said plenty of people have these very raised liver enzymes and are actually perfectly healthy, and/or it's just the fatty liver still and he really will need a kick up the bum to lose the bloody weight (my words not hers!) but is there anything else that it could be? Should I be lying awake worrying, in other words...?
Any experience, advice - TIA!!