After drinking alcohol (2 glasses wine)I get pain right side upper abdomen that can last for days. What could this be? I'm 49.

Poisoning. Alcohol is a poison and it never did anybody any good, ever, so stay away from it. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.