I've heard of this problem before, and the fact that you moved the snake into a 10 gallon aquarium is most likely your problem. Moving a snake, especially a young one like yours, from a humid and dark enclosure into an open and dry one (I'm assuming you do not have a glass canopy or plastic-wrap over the top of your cage in order to keep the humididty in) can cause large amounts of stress to the snake. I'd keep the snake in a sweater box/rubbermaid box its entire life, but if you would prefer to keep it in its new enclosure, try to minimize handling, and get a glass canopy (these can be purchased online, or in local hobbyists shops, and make sure to poke or burn a few small holes into the plastic part for air passage)or plastic wrap 75% of the top of the screen lid in order to maintain the humidity.