It is not always easy to identify an addiction problem. Addicts can be skilled at masking their behaviors, even from those who are closest to them. It also is possible that a loved one could be going through an experimental phase or coping with a stressful life change. However, addiction is typically chronic and gets worse over time. It’s important to get help in the early stages before an addiction turns into a life-threatening condition.
Here are some signs to look out for: http://www.healthline.com/health/addiction/recognizing-addiction#Recognize1
Learn how denial affects alcohol addiction and how to overcome it: https://www.abbeycarefoundation.com/alcohol/alcohol-rehab/how-denial-affects-alcohol-addiction-how-overcome/
Learn about stomach pain after drinking: https://alcoholrehabhelp.org/blog/stomach-pain-after-drinking/