Absolutely terrified for upcoming scan

I have my first check up scan since I finished treatment in 5 days and I'm so so scared.

I've been getting random pains recently and while I'm sure it could just be anything, I keep fearing that my cancer is already back.

I would hate to not even have gotten the chance to start getting my life back on track before my cancer comes back. I know it has a high recurrence rate but I'm honestly going to be devastated if I don't even stay NED past my first scan...

I know this seems irrational but I wouldn't be nearly as worried if it wasn't for the random pains. Fingers crossed I guess...