I had a virus that started about 4-5 days ago with flu like symptoms. It settled itself mostly in my sinuses. Last night I noticed a sensation of a lump in my throat as if there is a ball of mucus just above my stomach. It is also accompanied by nausea. I assume this might have something to do with my post-nasal drip but I am not sure. The lump sensation is so uncomfortable it kept me awake last night.