Ok so I've had my red tail boa for about six months and had no problems...... until now. The last two weeks I switched him from live to frozen thawed mice. He eats them but the next day I go in to check on him to find that he has regurgitated it. Now tonight I get him out to handle him and now he has an indent about half way down his spine. Any & all help would be GREATLY appreciated. I'm using my phone so it won't let me upload a pic sorry.