Home button buzzing ?!?!?!?

I don’t know why my phone home button started acting weird . It’s an iPhone 8+ and it makes loud clicking noises or buzzes/vibrations. They are VERY LOUD. Also this phone is a few months new but I never got a warranty on it. Please help I don’t know why it is doing this. I don’t think there’s water in the speakers and when I drop my phone it’s in my house and not from high up.