I sometimes get a taste bud that seemingly randomly gets swollen and painful, sometimes on the tip of my tongue. No clue what causes it, it's just a single taste bud at a time and doesn't seem to coincide with what I eat or anything I've stuck in my mouth (one of my stims is chewing on things or messing with things with my teeth). Is it something like that, or is it the entire tip of your tongue?
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Yet in my new wildness and freedom I almost welcome the bitterness of alienage. For although nepenthe has calmed me, I know always that I am an outsider; a stranger in this century and among those who are still men.
-H. P. Lovecraft, "The Outsider"