What are casual alcohol cravings?

Depends. The NIH says that more than one drink per day for women or 2 drinks per day for men may suggest a problem with alcohol. Cravings are usually defined as thoughts about drinking. These are problematic if you have (or have had) a problem with alcohol abuse. They may also be problematic if they are obsessive and you cannot stop these thoughts. A conversation with your FP may clear up and confusion.