You know, the same way one might forget to eat food. I keep a bottle of migraine zappers for this exact occasion when I wake up in the middle of the night with my head exploding and I’m like “oh. right. I’m dependant on a substance. nice fumble, dweeb”
could be. another commenter said they don’t get withdrawals. but I’ve noticed this is the only substance I’ve developed a habit of so it must be real somehow.