Whereas most migraines last from 30 minutes to 6 hours; some can last up to a few days.Every migraine begins in a different way. Some people just don't feel right. Lighting, smell, or sound may bother them or make them feel worse. Sometimes, if they try to continue with their usual routine after the migraine starts, they may become nauseated and vomit. Often the pain begins only on one side of the head. Trying to perform physical activities during this time may worsen the pain. Some people get auras, a kind of warning that a migraine is on the way. The most common auras include blurred vision and seeing spots, colored balls, jagged lines, or bright or flashing lights or smelling a certain odor. The auras may only be seen in one eye. An aura usually starts about 10 to 30 minutes before the start of a migraine. Some individuals may experience a migraine premonition hours to days prior to the actual onset of the headache. This is slightly different from auras and may cause cravings for different foods, thirst, irritability, or feelings of intense energy. Some people with migraines also have muscle weakness, lose their sense of coordination, stumble, or even have trouble talking either just before or while they have a headache.