To cut a long story short as my need for oral gratification decreased I decided to switch to sugar-free sweets. Great idea, lousy execution. Today I discovered that the brand of sweets I had picked wasn't sugar-free at all.
To rub insult into the injury, I've also been munching on Vicks lozenges today. I knew they were mostly sugar, but wasn't expecting to have doubled up.
Update 20/11/2014 @21:21: There's no secret, they're Mentos. There are regular Mentos with sugar and sugar free Mentos. I probably started with a roll of the sugar free ones and then switched to the regular without noticing. Mystery solved.