i am having some bad allergies right now, i'm sneezing and i am congested. i have overall bad sinuses but the last couple days have been bad and i have this horrible feeling in my left nostril, it hurts to breathe out of it, its this pain that shoots to the back of my head it kinda feels like brain freeze and my left eyeball hurts bad too and its worrying me, could this be from allergies, advil wont get rid of it, its been going on two days now. i also have some chest pains and my whole head (mostly my left) feels really weird like tight cobwebs around the top of my head. what could this be and what are some other symptoms allergies can give you?