Strange question about tinnitus...

I received a pretty nasty blow to the head a little over three months ago. My symptoms have improved a lot but I still have a long way to go. My main issue is a wandering eye which leads to all sorts of dizziness and nausea. I've also had some tinnitus that comes and goes. I've had two strange incidents this week that I'm now wondering if it could be concussion related. The first time it happened I just wrote it off like a fluke but then it happened again tonight and now I'm wondering if it's some sort of tinnitus? A few days ago I was in the bathroom with my toddler. All of a sudden I heard a loud noise, like something heavy being dropped in the tub and maybe hitting a wall too. It was loud and seemed super close. But I couldn't find anything that caused it so I just forgot about. It happened again tonight, putting my toddler to bed, he was asleep in my arms and I heard a loud wall scraping noise right next to me. I checked to see if something fell off a nearby shelf but there was nothing that could've caused it. Now I'm wondering if it could be concussion related? Or maybe I'm just going crazy. Or possibly I have a ghost 😂.