Welcome to HCM
You have not mentioning diabetes
since when. And your weight as well. As you are taking 6 liter of beers so you are not following diabetes diet and you should do regular exercise. Gemer doesnot have any role in blood pressur , it is a antidabetic medicine. Your fasting blood sugar is high you may required more metformin
for controlling your fasting blood sugar . Consult your diabetologist
for diet , exercise, and review of medicine.