i noticed a few months ago that if i put my tongue up, kind of curl it back, and stretch it towards the back of my throat i can feel something at the top, it kind of feels like a hair stretched horizontally across the top of my mouth quite far back. i've tried touching the top of my mouth with my finger as far as i can just almost to the point of it making me gag, and i can never feel anything, only if i do the tongue thing. i'm kind of scared about it...and googling it has been of no help to me. i haven't had any other symptoms although maybe it's important to mention that i have problems with my sinuses and have for quite a while (longer than i noticed this problem i'm talking about). anyway, does anyone possibly know what this could be? 