Despite what she claims in this article, Cameron DID NOT share why she was missing performances.
Direct quote: "while i was dancing, something happened with my upper spine and neck & the surrounding nerves, which is why i couldn't rotate my neck or back. i'll be fine, but i need to rest and not aggravate my injury for a few days. because of this, i have had to miss a few performances of #CluelessTheMusical".
Hopefully this young artists learns quickly that, to keep a fan base, she has to be upfront about why she's missing performances.
She was up front, but she doesn't owe you or anyone an explanation. Don't like it? Tough.