Answer:
Answer : shivering and pallor.
Explanation:
Hyperthermia and fever are characterized by increase in body temperature. But ,the main difference between the two is that, increase in body temperature due to illness or infection is known as fever, while hyperthermia occurs simply because the body can't release enough heat.
It should be noted that, the body release heat through some activities like breathing and sweating, to maintain normal body temperature.
In this case, the presence of fatique , racing of heart, and an upset stomach shows the presence of infection or illness, which are characteristics of a fever.
