Home Button

Well I was charging my phone. Like always. My phone never fell or anything so it’s in perfect state! Only the thing is, my hone button started doing weird. Like when I press on it, it gives this weird sound. And the pressure of it is also weird. Like I can’t explain it. It started doing this out of no where. It feels like a bass when I press it. Is this a technical issue you guys can fix? Or? What can I do? Also when I get notifications and like the whole program is like doing this sound. & I just had the phone new, so it’s not possible I broke it or so. It started doing this it self.