fresnelly and spinelust,

Thank you.

How often do you worry about it coming back?

I don't find myself "worrying" about it but I do think about it often.
I just feel that it will come back.

Honestly, you're always going to be more sensitive to it. Any time you get a random ache or pain, you'll get nervous that's what's causing it. For me, I stopped being really jumpy about it after about 5 years. The type of cancer I had was extremely aggressive and recurred twice, but due to the way most cancers tend to go, the longer you go without a recurrence, the less likely it will recur. As time goes on, it does get easier and you will worry less about it.