If the person has type o blood, what types of blood would she not able to receive?

Chronic illness it is a permanent change ? true/false

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

Anyone want to start streaks? im from arkansas add me goldenpanda03