I've been feeling like there's something stuck in my throat for a few days now. It's not painful or hard to swallow, just kind of uncomfortable. I took a look and saw a small bump, like 1 cm or maybe smaller, at the back of my tongue. I can also see my epiglottis and my uvula seems to be touching it. Is this something I should be worried about? It's been four days with this sensation, and I'm not sure what to do.