Well, I hate to tell you, but this is a sure sign that you're in love with your Castello. Like thinking your new girlfriend might die because she sneezed. Yup, you've got it bad. That's called the beginning of a carbon layer in there. It's not only okay but required. Try to relax and maybe make a homemade Valentine for your pipe. (Why do I always want to spell it Costello, like Abbot and .... That was one of my first goofy errors on Forums, the first of many.)