Hesitancy

n.	1.	The act of hesitating, or pausing to consider; slowness in deciding; vacillation; also, the manner of one who hesitates.
	2.	A stammering; a faltering in speech.

Noun	1.	hesitancy - a feeling of diffidence about doing something Synonyms: hesitance
	2.	hesitancy - a certain degree of unwillingness; "a reluctance to commit himself"; "after some hesitation he agreed" Synonyms: disinclination, hesitation, indisposition, reluctance

diffidence, hesitance, self-distrust, self-doubt