When i wake up in the morning i have a sore throat a really stuffy nose n i can barely speak. through out the day my nose is stuffy. i will blow and blow and blow but theres still stuff in there... not to mention when i blow it alot of mucus comes out but after maybe half an hour theres more. i can look in the mirrow and see alot of thick mucus in the bridge of my nose when i blow out alot of it...its yellow what could this be its been happening for over 2 weeks now