uncertainty — the state of being uncertain; doubt; hesitancy: His uncertainty gave impetus to his inquiry.
fluctuation — continual change from one point or condition to another.
haze — vagueness or obscurity, as of the mind or perception; confused or vague thoughts, feelings, etc.: The victims were still in a haze and couldn't describe the accident.
inconclusive — not conclusive; not resolving fully all doubts or questions: inconclusive evidence.
irresolute — not resolute; doubtful; infirm of purpose; vacillating.
muddle — to mix up in a confused or bungling manner; jumble.
quandary — a state of perplexity or uncertainty, especially as to what to do; dilemma.