Burrowing ball python....

Hey guys. This is my first question here about my normal ball python. We recently switched her bedding to a "Forrest floor" material- it's like dark wood shavings that hold a good amount of moisture. All of a sudden she spends a whole lot of time, day and night, burrowing all over her enclosure. She's got 2 hides, one on each side of her space, and according to our vet her enclosure stays at good temperatures. Is the burrowing normal behavior? Is she doing it because of stress? She eats once or twice a week, and it's been about a month since her last shed. If anyone can let me know whether or not it's something to worry about, that would be awesome.
thanks all!

here's a pic of her poking her head out of her tunnel
http://i59.tinypic.com/dr9w1t.jpg

She's fine. In the wild they live underground in termite mounds.

That is a very cute pic, btw. And yes, its normal for them to burrow.

Sent from my EVO using Tapatalk

Totally agree! Super cute pic :)


Sent from my iPhone using Tapatalk

That is so adorable.

Mine do it lol