Maybe she's born with it, maybe it's horizontal bppv.
Not vertical, maybe she's uncommon. Maybe she's thought she was and she tried a new maneuver (gufoni) and it worked and fuck is it nice to have that in her back pocket when she turns her head too often while trying to sleep. Bonus points for being a little freaked out that maybe it was dehydration or maybe just gas? Because apparently her body likes to go, here's a little uncomfortableness roulette.
Your choices are: one option that has immediate negative consequences untreated, one sucks so fucking much and will eventually lead to long term issues if left untreated and one of which is not the end of the world but has the ''super fun'' side effects of 'feels generally bad' and 'embarassing to be told by a medical practitioner' but ultimately will escape hours later on its own probably at an entirely inappropriate time, have fun figuring it out. These can all feel pretty similar in this particualr meat suit. :3















