Don’t look into the story behind “My Sharona” by The Knack.

Doesn’t it say “I get up and nothing gets me down”? I always thought that sentence described being motivated and not letting anyone ruin your good mood.

Do you maybe mean “Every Breath You Take” by The Police? That’s a common answer to this kind of question. A lot of people think of it as cute and romantic at first, but the song really talk about the Big Brother (from George Orwell’s 1984): a state of constant surveillance watching “every breath you take, every move you make”.