Saliva comes in my mouth every 2 min I have spit out saliva I'm tried of spitting saliva and while attending classes I have to swallow saliva and then I makes me tired and weak and frustrated I can't stop this thing I've been facing this problem from 4 months and I can't control the saliva comes in my mouth I'm healthy person suddenly I get this problem I don't know what do my parents are not believing in my doctor said it will heal automatically but I don't know it's getting worse I causing headache.