This is my first scorpion and it made a burrow under the water dish soon after we got it. We have had it for a couple months. It has gotten colder so at night our house gets cool so we got a lamp that lays on top of the terrarium. A few days ago I noticed it had covered the entrance to the burrow with sand. I read somewhere that they will go into hiding and refuse food when they are getting ready to molt. How long do I wait? Do I do anything?