Sinusitis is more than just a sinus infection and given the location where your headaches start (behind the eyes) it is a likely possibility. I suffered severe sinusitis induced migraine headaches for 20+ years that were relieved by a chiropractor and haven't had any now for close to 16 years.ken no i haven't been to the doctors yet but dont think its a sinus infection as I have no other tell tale signs other than it hurting behing my eyes. no the headaches start behind my eyes then it makes my head hurt sometimes it works its way down my back of my neck but not always and eating sugar and some other foods makes it worse.