I've always used a heat rock and never seemed to have trouble with it. I soaked him in luke warn water and got him to take a crap but it was real hard. Then about 20 minutes later he vomited up the rat and it was barely digested. He doesn't look as bloated now but now he keeps opening up his mouth like he is burping or maybe trying to puke. Is this normal for a while after they have this happen. I'm going to call a vet tomorrow but your thoughts are welcome thanks.