Yes: Your nerves are reporting that your muscles have been worked hard lately. See also "Charley horse." Keeping your body fit with moderate exercise can improve immunity. Don't overdo it, risking injury.
Answered 10/7/2015
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Exercise: you may be pushing yourself too far in your exercise program but it is normal to feel tired after having done a good exercise program for 2015
Answered 10/7/2015
2.2k views
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