im a new bearded dragon owner and ive had fred since july of 2016. i bought him from petsmart with his sister who died in october of 2016. lately, he has just been sleeping and not eating. normally, he would chase crickets and worms and jump to catch them but now all he does is look at them. he won't attempt to chase them. he hasn't eaten anything in the past couple of days and i dont know what to do.