hey haze, what kind of vape do you have......i have the Vapir (i know its not the best but a friend gave it to me)....i have noticed that when i pack a really full bowl in it the vapor gets a little more dense, i inhale, and feel the need to cough......then i get this itchy dry feeling in my throat as i inhale. and soon im coughing up mucus......but i usually just power through that and load it again......nothing a little water can fix, anyway im not sure if this helped out at all but i hope you feel better and keep on vaping.:thumbsup: