Could she have taken something to calm herself down?

Okay I have a friend, we were supposed to be doing presentations in our class, she'd get all worked up, have panic attacks, cry and get really really anxious at the thought of even doing a presentation. It was obvious she was scared. 
However when she actually stood up to do the presentation she was fine! Confident, spoke clearly & she said she wasn't anxious one bit. 
This girl came across as having a phobia, and now she said she loved it! Seriously?! 
Could she have taken something? Seemed quite out of character.. 🤔🤔
If so what could she have taken? She's not on any beta blockers or antianxiety meds, and didn't look stoned 🤔

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