Thanks for writing to HCM
Increased GGT indicates liver injury
.It is important to know about other parameters of LFT like SGPT,SGOT
It is important to know about alcohol history.
You need proper clinical examination and few more investigations.
Other investigations include routine hemogram,RBS(Random blood sugar),Viral markers,Ultrasound
of abdomen.Further investigations can be done if needed.
You may need medicines after proper checkup.
You should avoid alcohol if you take it.
Hope i have answered your query.