Is it just me or is tumblr doing some weird shit?

I keep seeing really old posts of mine at the top of my dashboard which is freaking me out (first time I thought I’d been hacked).

When it first happened there was no tag, but now I’m seeing “Look at this post you made!” above it.

Now just appeared “Check out this post!” and this random post is there.

Please tell me there’s going to be an off button?