The correct answer is D. Your muscles are burning. If you are experiencing any of the other 3 choices, either you probably have asthma, or you just held your breath during sprints.
Anorexia and bulimia are life-threatening conditions that should not be overlooked.
Anorexia and bulimia are both definitely life-threatening conditions. Bulimia is where somebody tries binges and then purges to try and prevent weight gain. Anorexia is where people progress through extreme weight loss. The condition is certainly life-threatening considering the person suffering usually refuses to eat or only eats a little calories. Anorexia nowadays is contemplated as 'starvation'.
