Yeah,see a doc,ya probably having some kind of h/a episode.I suffer from cluster headaches for past 5 years.My pain is a one sided burning pain,very bad pain,thats lasts from 1-3 hours.Cluster headaches are associated with smoking and drinking.During a cluster cycle(about a month long) I breathe 100% oxygen to abort the pain.Check out clusterheadaches.com and read what they are and definately make an appt. with a Dr.