hello, I have this sensation of a lump or something stuck in my throat. It is driving me insane because I keep clearing my throat , coughing , or swallowing hoping it would come up or go down. I also have a funky film coat on my gums , teeth , tongue , and cheeks that is making me want to throw up. I can feel swollen lymph nodes in my neck . I have lost my appetite because everything tastes aweful....I am always spitting mucus....... I also have had a great amount of nausea and some vomitting with this. Help me please I am losing my mind with this lump.