Hi Benjamin . My name is Dr . Green . What seems to be the matter ?   I've been feeling pretty ill for a few days now .   What are your symptoms ?   I feel chilly , I've got cramps , I keep throwing up , and I feel dizzy and tired .   It sounds like you might be a bit dehydrated . Do you feel thirsty most of the day ?   Yes . I can't seem to drink enough .   Have you been drinking plenty of water ?   No , just soda .   Ok . Well , we'll have a nurse take some blood in a few minutes to see if you're dehydrated . First , let me feel your pulse .   That seems to be a bit low , but that's not uncommon when you're ill .   Is anyone else sick in your home ? 