I have a tiny lump inside my left nostril that is painful, its hard for me to blow my nose but when i do i get a white mucus. my nose doesnt run at all but the clogged up feeling is only on the left side. I had a doctor look up in my nose with a camera and light tubing, ever since then i have had this problem and now i have to have an ultrasound or mri to see what the problem is. several ENT doctors have checked me and i cant get an answer. i was just told that my thyroid is underactive as well. why is my nose like that could someone please help?