Going into a hole to sleep is normal, but not all day. I bought a hum-hum trigger 2 weeks ago, and he died in 4 days. The whole 4 days he had been swimming and eating and his color was fine. Every night when the white lights went out, he immediately slipped into his hole. On the 5th day, I came home from work and he was still in the hole. I waited a while then finally stuck a stick in the hole and he was dead. It took me 20 minutes with tweezers to get bhim out, he was stuck. I mean really wedged. I read in my book that they can get stuck, then work themselves up and get stressed.:nope:
I hope yours is just shy. matt