Yes, that's strange.
On my last post I had 3 likes within a very short time, now it's 1 like less. Most of the time I have no likes at all, or only 1 like, from a real person I know.
But what's even stranger is that these likes are not displayed under the bell icon, so I can't see who liked my post.
🤔 

 Yeah, so weird. And it's Not even the same npub that likes the note.🤷🏼‍♀️