Whenever i drink alcohol my stomach feels warm but does not hurt. could i have gastritis or is that normal.

Unsure what you mean: by "feeling warm." The lining of the stomach has pain receptors but not receptors for temperature, Gastritis generally causes pain and heartburn, as well as nausea and vomiting. You list yourself as a social drinker, averaging 1 or less per day, but if you are drinking all 7 drinks at one time, it certainly could cause some irritation in your stomach. Cut back to 2-3 at one time. Try antacids.