That is EXACTLY the way I think about sick leave.
I tell people my collegues that I'm taking a sick day to play golf and when they give me a bit of a stare I explain that my employer has anticipated/accounted for me being away 10 days a year sick.
If I happen to be a healthy person who doesn't need to take time off work when I am ill, why the hell should I be punished for it?
At my last place they stopped calling them sick days and bundled all non annual leave days together into something called "personal leave"
Guys like you usually get gallstones or serious injuries and whinge about how they have to take annual leave during their recovery.
Be honest. Save your sick leave for when you are sick.