Call the police and get an ambulance and keep her calm
Well to me it sounds like, trail mix with pieces of sweetened fruit and fruit juice. These two can contain large amounts of sugar which can be unhealthy.
Vomiting blood and a spilled bottle of drain cleaner is the most likely answer.
B is the best option. If her friends keep pressuring her to do something she is uncomfortable then she should find new friends. Don't pretend be something your not people should accept Bertha for what she is not for what she drinks.
Well you dont have any following statements for me to answer, i can say one thing, weight and energy are the same because depending on if you are going to gain or lose weight, loseing weight causes more energy usage out of you and if you are gonna lay off and gain weight, it causes less energy being used out of you, energy depends on the weight