Etymology: Gk, mys + algos, pain, a + sthenos, without strength
a condition characterized by a general feeling of fatigue and muscular pain, often resulting from or associated with psychological stress.
my·al·gic as·the·ni·a(mī-al'jik as-thē'nē-ă)
A condition associated with muscle pain and/or tenderness, generalized weakness, and loss of strength.
[G. mys, muscle + algos, pain, + astheneia, weakness, fr. a- priv., + sthenos, strength]