Migraine headaches go through four phases:  Prodrome can last three hours to several days. During this phase, you may experience problems concentrating, irritability, nausea, appetite changes, and muscle stiffness.  Aura can last five minutes to an hour. You may see flashing dots or lights, numbness or tingling skin, tinnitus, tiredness, and a tender scalp. Most people who have migraines do not experience aura. Headache from migraine can last four to 72 hours with classic migraine symptoms. Postdrome is also described as a migraine hangover. Difficulty concentrating, depression, fatigue, and confusion are common symptoms. Some people may experience euphoria during this phase.