Think my implant might be acting up...anyone else had this?

I've had this dental implant for like three years now, and honestly, it's been pretty smooth sailing until recently. But lately, something just feels...off. Like, when I bite down on something harder (think chips or crunchy bread crust), there's this weird pressure feeling. Not exactly pain, but definitely uncomfortable. And sometimes there's a tiny bit of swelling around the gum area—nothing crazy noticeable, but enough that I can feel it with my tongue.

At first I thought maybe it was just irritation from flossing too aggressively or something dumb like that (you know how it is when you're half asleep and flossing at midnight lol). But it's been going on for a couple weeks now and I'm starting to wonder if maybe the implant itself is having issues. I haven't noticed any shifting or looseness yet, thank goodness, but I'm kinda paranoid about it now.

I did some googling (probably shouldn't have done that ) and now I'm seeing horror stories about implants failing after a few years. I'm hoping that's not what's happening here, but figured I'd ask around to see if anyone else has experienced something similar.

Has anyone here had an implant start acting weird after a few years? Did you end up needing it replaced or was it just temporary irritation? Really hoping it's nothing serious cause the idea of going through the whole implant process again is NOT appealing right now...