babbled — Simple past tense and past participle of babble.
flustered — to put into a state of agitated confusion: His constant criticism flustered me.
panicked — a sudden overwhelming fear, with or without cause, that produces hysterical or irrational behavior, and that often spreads quickly through a group of persons or animals.
verb dithered
hesitated — to be reluctant or wait to act because of fear, indecision, or disinclination: She hesitated to take the job.