Answer;
-The third stage fever
Explanation; 
-Fever, also referred to as pyrexia and febrile response, involves having a temperature above the normal range (above 37.5 or 38.3 °C)  due to an increase in the body's temperature set-point (36.5–37.5 °C). This increase in set-point temperature triggers increased muscle contractions and causes a feeling of cold.
-The first stage of a fever is marked by headache and body aches, the second stage is marked by the chills, and the  third stage is the flush state. The fourth stage is defervescence.
 
        
             
        
        
        
Humans have emotions and free will; robots do not.
 
        
             
        
        
        
<span>neural activity -APEX</span>