Well, you have two options, either throw up now and not worry about it later (this relieves pain too), otherwise, just drink something and have something to eat. Don't try anything too sugary like one of those Starbucks unicorn drinks (I don't know if they still exist but hey, just a warning!). Try a soda or just plain water. For something to eat, try a corndog or something that you like. Most people like pizza, so try a nice greasy pizza!
I believe the answer is B, although im not exactly sure what a skin fold test is for, im sure this is the right answer.
Omg are you ok? if you do feel that way, think of alternatives that might prevent you. for example, maybe play around with an eraser or make knots.
do stuff you enjoy as well :)