2. Joint Pain
Myalgia is muscle pain, not joint pain. However, it is also common for joint pain to accompany muscle pain and sometimes it will feel as though the pain and discomfort are radiating out to affect the whole area.
For example, if the muscle pain is caused by a build-up of pro-inflammatory cytokines – associated with illness among other things – then you will likely feel that not only in the muscles but also the joints and the entire area.
In fact, in some cases, myalgia can even be caused by arthritis. Certain forms of arthritis are caused by the immune system attacking your own body, in which case you are likely to feel the discomfort radiate out and affect the entire area.
Another thing to think about is that it can be hard to distinguish between joint, muscle, and tendon pain in some cases. In fact, some experts prefer to refer to the ‘muscle-tendon-unit’, rather than talking about anyone element independently of the others.