3 years ago, Rhona Calder watched her sister become a prisoner to her own head.
Some months she lost 15 days to the dark room, curtains drawn, a bucket by the bed.
Her doctor called it stress, then hormones, then anxiety, and sent her home with another script.
She'd become a shadow of herself, cancelling the girls' birthdays, apologizing for a pain no one believed.
Every scan was normal, so they kept calling it just a headache.
Rhona knew it was more than that, and she had to do something.