(n.) State or quality of being nervous.

agitability agitation all-overs allergy anaphylaxis angst anxiety anxiety hysteria anxiety neurosis anxious bench anxious concern anxious seat anxiousness apprehension apprehensiveness bite bitingness bluster bobbery boil boiling brouhaha bustle cankerworm of care care chills of fear churn cold creeps cold shivers cold sweat combustibility commotion concern concernment considerateness conturbation creeps cuttingness delicacy discomposure disorder disquiet disquietude distress disturbance dread drive ebullition edginess effectiveness embroilment emotional instability emotionalism empathy eruptiveness excitability excitableness excitement explosiveness exquisiteness fear fear and trembling ferment fermentation fever feverishness fidgets fineness flap flurry fluster flutteration foment force forcefulness foreboding forebodingness fume fuss goose bumps gooseflesh guts heartquake horripilation hubbub hurly-burly hyperesthesia hyperpathia hypersensitivity identification impressiveness incisiveness inflammability inquietude irascibility irritability jimjams jitters jumpiness latent violence maelstrom malaise misgiving moil mordancy nerviness nervosity nervous strain nervous tension overanxiety oversensibility oversensitiveness overtenderness palpitation passibility perceptiveness perceptivity perturbability perturbation photophobia pins and needles poignancy power prickliness pucker punch quaking quiver of terror responsiveness restlessness roil rout row seethe seething sensitiveness sensitivity sensitization shivers sinew sinewiness skittishness solicitude soreness startlishness stew stir strain strength strong language supersensitivity suspense sweat swirl sympathy tact tactfulness tempestuousness tenderness tension tetchiness thin skin thrill of fear ticklishness to-do touchiness trenchancy trepidation trepidity trouble tumult tumultuation turbidity turbulence turmoil twitter unease uneasiness unquietness unrest upset vexation vigor vigorousness violence vitality zeal