Consider this, during the Vibratron session, Alice finds things to be blurring out. We don’t know what the Vibratron really is, but it sounds like it can cause a lot of damage to inner woman parts. Alice wakes up on the next day and finds her hacked account and the doppelganger. What if Alice got hurt during the Vibratron session and bled excessively? What if the Vibratron sends Alice into a coma, and the rest of the film that we see are merely inside the fragile mind of Alice.

• Her fears coming true – the one thing she’s been gunning to do, to get to the top, is stolen from her … by her.
• Her vanity is taken away because her double is breaking all the rules she follows as a code.
• Her mother is oddly positive about her porn career and her online personality – the acceptance she hopes for.
• Her brother hates her for who she is.
• The dates and timelines of events (like BabyGirl’s death) are not consistent in the news clippings.

Alice’s consciousness is sent twirling down a nightmarish path that she battles to conquer.

source: Cam Ending Explained