The main symptoms of acute alcohol withdrawal may be anxiety, irritability, difficulty in calming down, stress over small things, quarrels and fights easily, and short temper. In severe cases, physical symptoms may occur, such as panic attacks, hand tremors, sweating or dizziness, nausea, vomiting, upper abdominal discomfort, and poor eating, especially when you first start to quit drinking. In severe cases, there may be a strong desire to drink, and some people may not be able to resist drinking at this time.