I think I keep blacking out

So these past couple of days around sunset, I realize my boots are in this very specific corner of my room. For context, I walk my dog every day and when I come home I take me boots off and set them in my room to keep them out of the way of my family members. I leave them in middle of my floor so I know where they always are and because it doesn't inconvenience me, but lately they've been just seemingly appearing in corner of my room. It's weird because I never pay attention to that corner either, there's just some trash in an extra bin and my old guitar amp. It's really starting to freak me out because trying to think back makes me realize that I've been forgetting practically half of my day. I'm in my late teens, I eat healthy and exercise, I have no serious health conditions and I don't use substances, so this just isn't making sense to me. I don't know if this is where I should post this, but I'm getting seriously paranoid, more than normal. I'm just beginning to forget more and more like it never even happened. Any ideas on what this could be?