Hi from past two three years i am having acute pain at one point of my eyebrow. This is unbearable pain and i usually feel the urge to vomit during pain after which i get some relieve. Earlier its frequency was very low probably once in 6 months but now it happens once every month and usually last for two days.before the onset of the pain i yawn a lot and has watery eyes. Is it migrain and if so what can be its cure