Quote Originally Posted by frankykeno View Post
I think when it comes to unusual behaviour while it's smart to pay attention and see if it's a reaction to something specific, it's also best to step back and watch for a pattern forming. Sometimes animals, especially highly instinctual ones like snakes, just do things for no reason apparent to a human being. I'm not saying to ignore this but I wouldn't freak out too much. Just closely monitor the snake, make sure everything really is okay in his world, go about your business and see if this re-occurs or anything else manifests itself.

If you have any concern, however, that this is a health related issue, please consult with your herp vet as you see fit.
Good point. The main reason I was alarmed is because it's so uncharacteristic of him. I checked on him this morning and I can touch him without him thrashing but he goes into strike position.

He's been aggressive once before when he had a slight burn on his head years ago (newbie keeper error), which makes me think that maybe something hurts or he's not feeling well.

I'll keep an eye on him, thanks all for the ideas and advice.