Mine does that when he's hungry. I started feeding him twice a week and he stopped wobbling. Now he's back to once a week, and I rarely see him wobble. He'll sit there with his head propped up in the "stargazing" pose for a little while, but at least he doesn't go crazy ! He's an adult now though

My killerbee will still spin wildly as well (the gene affects ALL morphs with spider in it). She's being fed twice a week so I don't see her do that as often. I believe they do it when they're hungry or stressed. She's still a baby (around 200-300 grams)