"Don't Worry Baby"

A couple days ago, I listened to the Surfer Girl/Shut Down Volume 2 two-albums-on-one-CD re-issue, and I noticed a small thing about "Don't Worry Baby," specifically the first line: "Well, it's been building up inside of me for I don't know how long."  The melody to which "building up inside of me" is sung ascends (B B C# C# D# D# E), so there's a musical representation of that "building up."