Suggest Remedy For A Flap That Is Sticking In The Throat

I noticed that I have a flap orI noticed that I have a flap or something sticking up high in the back of my throat. I cannot see it, but felt an irritating feeling in the back of my throat, and as I tried to clear the obstruction (if it was in fact some mucus, food, etc), I felt it was part of me. After doing a little research, I feel like it may be my epligottis, but am not 100% sure. For whatever reason, I threw up a little bit in my mouth when I burped a little while. I feel like this could have been the cause. Should I do anything? I still have the feeling like I need to clear my throat, but I also am unsure if I should try to push it back down or simply leave it alone and go to sleep. That could allow time to do it s work and by morning it could be better?