This was probably a coincidence, but while I was in my cave on my survival world with no mods arrows started coming from nowhere and hitting me, I hid and then when I came back out the arrows came from a different spot I went over and tried to hit it but there was nothing there and I kept getting hit by the arrows from right in that spot. I logged out and came back in after taking a picture, there were no more arrows coming but there were a bunch on the ground. I don't know what happened at all, and this is not a lie or a hoax.