Hi. i m 14 years old and for the past few days i ve had a sore throat off and on, but last night it got worse and its horrible today. my throat is a little red, my nose if stuffy, i have a head ache, but no fever. so i thought i was getting strep. but in the back of my throat, behind my uvula theres this big white bump, in a circle form. it looks like it has a little hole in the middle. it hurts when i swallow , so im guessing it s that? i can sort of feel it move, but i have no idea what this is. im scared. help?