If you are a heavy drinker, then your lack of hangovers could be a sign that your body is addicted to and dependent on alcohol to function normally....

In this case, you may feel physical withdrawal symptoms when you discontinue drinking alcohol, but you may not experience hangover symptoms after drinking alcohol.

Alcohol dependence is a common sign of alcohol abuse. No matter how much or how little alcohol you're drinking, if alcohol use is contributing to problems for you (such as damaging relationships with family or friends, or hindering your ability to perform well in school or at work), then you may want to consider seeing a counselor to further explore your relationship with alcohol. Simply not having hangovers in general is not a sign of a serious problem. However, if the reason you aren't getting hangovers is because your body is dependent on alcohol, then this could be a problem. Only you will know if your alcohol use is problematic
No hangovers = problem? | Go Ask Alice!