I just got sand for my bearded dragon and it said on the bag it does not cause impaction and it has lots of calcium etc so when i put it in i thought well this will be good and my bearded dragon rex after a few minutes started eating it and he had like 5 bites of it and then i thought its ok it proably cant hurt but in the morning he kept eating it and when i got back from work he was under his log and closing his eyes and he might be sick so what should i do?