Nausea and vomiting are very common during a migraine attack, with studies showing close to three-quarters of patients experience vomiting and almost 95% feel nauseous. One reason for this is that while a migraine attack begins in the brain, it causes changes in the brain stem and affects the central nervous system, too. Neurologists believe this could be the source of the headache pain, as well as the sensitivity to light and sound often experienced during an attack. Nausea is also a side...