my spider only seems to wobble when he's stressed.

when i first got him, he had 1 hide and would corkscrew... i gave him a hide and he stopped... then i didnt have time to feed him so he missed 2 weeks of feed (i was in crunch time.. horrible mean hours ) and i could tell he was hungry bc he corkscrewed... after he was back on schedule, no more mishaps or husbandry faults, he hasn't corkscrewed in his tub anymore... except for another time when he spilled his waterdish, he was in a wet enclosure for a bit and i couldnt clean it til i got home.. when i got home, sure enough, he was corkscrewing

this is just my theory... lol..