Happened to me countless times tonight.. Annoying but what do you expect? Dayz alpher it's in the name lol

I've had this also, also.. I could have sworn I've been attacked before by one because I've had to bandage wounds.

Thanks for your replies guys, but I'd like to add to this too, it's not due to starving or thirst either.. As I have to bandage and it's often a thud noise, only explanation is being hit by a zombie.. That isn't there.. Spooky!

I heard this too.. But sometimes the zombies are invisible because I got hit by them..