Title. When I get a fever my muscles often feel achy and restless. What causes this?
In: 56
Any sensory stimulus can be converted to a pain signal if the amplitude is high enough. Ie, stroke a patch of skin once might feel nice, stroke it for several days and it will become excruciating. Like Chinese water torture.
For myalgic pain in sickness, your body is recognising a bunch of chemicals that are not usually present in such high volume as pain via chemical receptors.
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