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Feeling feverish within normal body temp. range

Thinktank

Senior Member
Messages
1,640
Location
Europe
My average body temperature hovers around 36 degrees celcius. Whenever it reaches 36.4 i feel "warm" but when it goes up to 36.7 and higher i start to feel as having a light fever.

Anyone else with a low bodytemperature feeling feverish in a normal body temperature range?
Is there an explenation to it?
 

zzz

Senior Member
Messages
675
Location
Oregon
Anyone else with a low bodytemperature feeling feverish in a normal body temperature range?

I would say many, if not most of us.
Is there an explenation to it?

The low body temperature could be due to low thyroid; you should have this checked out if you haven't already. But even with proper thyroid levels, our body temperatures tend to be low. Temperature regulation does not seem to work properly in a lot of us. This function is a job of the hypothalamus, which has numerous problems in ME/CFS; for example, it is deeply involved in dysautonomia, as it controls the sympathetic nervous system.

As for why you feel feverish when your temperature goes up by the amounts you describe, it's the same reason that people with a higher normal temperature feel feverish when their temperature rises by a similar amount. The immune system has detected either infection or inflammation, and cytokines are released. One of the effects of cytokines is to make you feel sick (in this case feverish), so that you slow down your activities and the body can use all its energy to fight a perceived threat.
 

Sidereal

Senior Member
Messages
4,856
Subnormal body temperature, subjective perception of feverishness and inability to mount a real fever are well-known problems in ME/CFS. In order to raise body temperature you need to be able to produce more energy. There are several threads on this topic already.