I woke up with an itchy feeling in my throat this morning, it hasn t really bothered me all daybut now that im trying to sleep, I keep waking up to a pillow covered in saliva , a strong itch in my throat, and when I cough or swallow to make the itch go away, it causes me to gag. Usually around this time of year I catch some sort of infection, I even had mono last year. Is this something I should worry about?