No; if the person has a fever it doesn't mean they have HIV.
When you have a fever, the temperature of your entire body is raised. Perspiration(sweating) is your body's natural reaction to heat, because moisture evaporating from your body allows heat to leave.
Heat cramps are the least severe of the heat-related illnesses. This heat disorder is often the first signal that the body is having difficulty with increased temperature.
Although ice possesses certain amount of heat energy, it is less than that possessed by a person. When a person touches ice, the heat energy from his/her body is transferred to the ice to reach equilibrium (equal amount of heat in the person's body and in the ice). Since heat is not being received that is why it is not felt either. Since heat energy is being given away, a person feels cold.
In high temperatures there are several methods of body heat loss. One is metabolic heat loss, which is where the metabolism of the body produces heat which is increased in higher temperatures, this in turn produces heat loss. There is heat exchange which is where body heat is lost when making contact with a cooler object. Also conductive heat exchange allows the body to lose heat as coming cool, like water or air, move around the person. The body also uses radiant heat exchange which is where the blood is sent to the superficial arteries and veins to let off heat. Finally there is evaporative heat loss which is of course when a person sweats and as that sweat evaporates it takes body heat with it, thus in turn cooling the body down.
It's not.
Heat is energy and cannot be negative, If you are talking about heat flow then if you define outflow to be negative then inflow is positive.
Body heat is the heat that your body has and sweat to cool your body down .
Hyperthermia/Fever
It is caused by a build up of sulfur in a person's body that eventually reacts to increased body heat.
Human body temperature is the measurement of heat in the human body. The average person's body temperature is about 98.6 degrees Fahrenheit.
The person with fever feels cold because his body inside is not heated because all the bosy heat is outside his body
Sweat glands are the cooling system for the human body. Excess heat is transferred to the sweat which oozes out of the body and evaporates. For a person born without sweat glands, some kind of artificial cooling system would be necessary to keep that person alive, or bodily heat would build up with nowhere to go, and the person would die. Humans are warm blooded, and internal heat from metabolism would be as much of a danger to such a person that from an external heat source.