气虚

气虚	qì xū	deficiency of 气 (TCM)
气	qì	gas; air / smell / weather / to make angry; to annoy; to get angry / vital energy; qi
虚	xū	emptiness / void / abstract theory or guiding principles / empty or unoccupied / diffident or timid / false / humble or modest / (of health) weak / virtual / in vain