The neverending story

The last thing you remember before passing out was that the drink didn't taste right. Now, here you are in the middle of a forest, with nothing but the clothes on your back, and a headache the size of Canada.

You look around to get your bearings. Hmmmm. Trees, trees, and more trees. Well, that doesn't help matters either.

Suddeinly, from somewhere out in the scrub you hear a rustling noise like something moving through the underbrush.

What do you do?