It's all good! I think the bug was something maybe to do with hunger, maybe? I'm pretty sure it wasn't an enemy, but basically the character was damage reacting continuously soon as they woke up (grunting noise, screen shake almost continuous). I could still walk around but it was kind of disorientating and... well, I died pretty soon after! At first I thought it was maybe because I was starving but I filled up all my gauges and it still kept happening.
Hope that helps!