I can't think of a title

Yesterday I ate some wild roasted sesame seeds. I think sometime afterward a bit of saliva went down the wrong tube (bronchus, instead of esophogus), so my breathing felt...weird. Then I went into a sort of fantasy thinking about how maybe I accidentally inhaled a small sesame seed and months from now there would be something growing in my lung.

This is not possible. I'm sure that I didn't aspirate a sesame seed, and if it did I will be fine and I won't have anything growing inside me. However there have been cases where people have had some plant growing in their lung. Two years ago a man was found to have a two-inch long fir tree growing in his lung, which was initially suspected to be cancer. And last year a man was found to have a pea sprout growing inside him.