Thanks for writing your query.
The cause of your abdominal pain
can be due to increased alcohol intake resulting in increased acid secretion in the stomach.
It is not an appendicitis
pain as pain due to appendix
occurs in right side.
You can take antacid like Omeprazole
20 mg once a day before meals.
Is pain is severe, you can take pain killer like Mefenemic acid along with antispasmodic like Dicycloverine
You should avoid excessive alcohol.
Your diet should be light and should contain less spice/oil. It should be prepared hygeinically.
Driink lots of pure water daily.
If the problem persists, get yourself examined clinically.
I hope this is helpful to you.