This has happened twice now, each incident about a month apart. He makes a really weird squeaking noise, not the usual bark and the doesn't wake up. The first time he was in his box, lying down. I lifted the box out and he didn't wake up and then my boyfriend touched him and stroked him and he woke up. This time (about 5 mins ago) he was lying down on his side again but this time he was on his shelf. After he squeaked I called his name and after no response I tickled his back feet. He still didn't wake up so I opened the cage (the sound of this usually wakes him up because he thinks he can come out to play) and started to stroke his whole body. Nothing. Then I was really scared so I shook the cage a little and he finally woke up. He was breathing fine, not shaking or anything. Am I just worrying too much?