cluster headaches
"This is the first time I have used Sumatriptan , it was Arrow-Sumatriptan injection.  I immediately felt a slight pressure in my chest and a pushing in my temples and the base of my skull and felt tired and weak.  There was a tingling sensation in my nose and my throat was ultra sensitive.  It is an hour since I injected and my cluster headache has eased but not gone away yet.  My eye has stopped streaming and nose not running so fast and I look slightly more human.  I had hoped for better than this but it is an improvement."