The hangover is always bad because it causes queasiness, headaches and feeling like you have been on a run. It may indicate that maybe you are suffering from 'hangover anxiety', which could possibly be harmful. Also known as 'anxiety' defines as "the feeling of overpowering guilt, stress and worry you encounter the day after a drinking spree." 

While you might think it's just another millennial idea, instead it is actually a legit condition that you may be inclined to. Alcohol primarily slows down your neurotic system making you less desirous and uninhibited. On the next day as the alcohol makes its way out of your body, the withdrawal messes with the levels of serotonin, the feel-good neurotransmitter in your brain. This results in an ungovernable flow of negativity and despair.
While this usually hits people who are likely to feel anxiety and depression. People ignorant of these trends might encounter it as well. 

Water is the best remedy for all body problems, and when it comes to withdrawing a critical hangover, H20 is your best buddy. If you have had over five examples of 'hangxiety' lately, you might have a serious problem. Checking your alcohol intake or taking a complete break from drinking until you are in a better mental state is the way to go.