I logged in and my character was in hourglass mode?

[WatchOut (DayZ) 1]

I logged in and my character was knocked out, in hourglass mode. It was one of those hourglasses that took around 10 minutes to go through.

Why is this?

[jonaswashe 7]

You logged out while in combat.

There's a shock meter above your status that appears if you get attacked by a player or zombie, if you log out during shock you spawn unconscious when you log back in.

I've had shock apply to me at random times when I wasn't being attacked so this could happen without you intentionally logging out while being attacked.