Before I answer your question, i would like to attain some more information?
Have you recently had any medical problems?
Have you been abusing or using any alcohol or drugs recently? If yes for how long?
Do you have any medical problems?
I have no medical problems at present or recently.
I am however what you would consider a very heavy social drinker. Drinking at least 14 units a day, 4-5 days a week, over the last 6 years.
If you stop drinking your GGT could go back to normal within one month.