When i wake up every morning i have too much saliva in my mouth and i have to spit or ill choke, or if i do swallow it i gag! So i just end up spitting and spitting until it goes away which is when i eat something, Im only a 14 year old girl and this problem has been happening since, maybe 11. And i have VERY bad sinuses *(my doctor said.) So could that be the cause of it? & My mom just says i'm being dumb when i tell her this, will someone help me?