A migraine hangover is a term used to describe the post-migraine symptoms that can occur after a migraine attack. The duration of a migraine hangover can vary from person to person and can last from a few hours to several days. The symptoms of a migraine hangover can include fatigue, difficulty concentrating, sensitivity to light and sound, and a general feeling of malaise. Some people may also experience mood changes, such as irritability or depression. While the exact cause of a migraine hangover is not fully understood, it is believed to be related to the changes in the brain that occur during a migraine attack. Treatment options for a migraine hangover may include rest, hydration, and over-the-counter pain relievers. Consulting with a healthcare professional is recommended for those who experience frequent or severe migraine hangover symptoms.