Hello and welcome to e health forum.
Binge drinking and excess alcohol consumption can be associated with liver damage, gall bladder inflammation and gastritis.
All such causes can present as abdominal pain, lack of appetite, nausea, etc.
You might benefit by changing your habits, and reducing the consumption of alcohol.
In addition, consulting a doctor for a examination and a few bloodtests ( Liver function tests) can help to make a proper diagnosis for your symptoms.