At one point, she was drinking as many as one energy drink per day and even posted about the product herself

As many as one a day? Unless it had goofy caffeine, c’mon.

EDIT:

Per https://www.alaninu.com/products/energy-drink-breezeberry

CONTAINS: 200mg of caffeine per 12 fl oz serving.

Per https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much

coffee, regular brewed non-specialty - 113 to 247 milligrams

So if she had a Starbucks habit she could have potentially been doing just as much caffeine in a given day.