Hello!
Thank you for the query.
Alcohol is always able to cause some damages to the stomach mucosa. It can be just an irritation, inflammation or it can trigger
peptic ulcer. If you have had stomach pains before, nausea, etc,
stomach cancer should be ruled out.
Moreover, alcohol can also cause
acute pancreatitis, gallstones pain. This conditions can give pain in the stomach location. So it does not have to be stomach.
I suggest you to visit your doctor and have abdominal
ultrasound, blood work, liver tests (AST,ALT,GGTP), amylase, urine amylase,
bilirubin, urine analysis and gastroscopy as a next step.
In a meanwhile you should avoid fatty foods, spicy foods, alcohol, coffee, fruit juices.
Hope this will help.
Regards.