I’m kinda scared

I can’t get a good picture of it but last night I discovered that I have a couple bumps on my gums like behind my teeth under my tongue. My boyfriend is telling me to wait to go in cause it could just be nothing (I tend to overreact when it comes to this stuff) but it’s kind of concerning me that it just randomly popped up last night. It didn’t hurt until I ate then it kinda started to hurt when I started eating. Guess i just wanted opinions or maybe someone who knows what it is?