While looting a building I started bleeding spontaneously, I was not aggro'd by a zombie, heard no combat sounds, just started bleeding for no reason. I tried running away and pulling out a bandage to stop the bleeding but was unable to make any actions except for moving, however the loot icon to look into a players inventory showed up and I could look at my own inventory as it was in the "vicinity". I logged out and back in to see if that would allow me to control my character, upon logging in I was unconscious and respawned.