Stirring, Strife, Swirl, Throb, Throbbing, Tremble, Trembling, Tremor, Trepidation, Trouble, Tumult, Turbidity, Turbulence, Turmoil, Twitter, Unease, Uneasiness, Upset, Velocity, Worry, Activity, Actuation, Agitation, Agony, Ailment, Anguish, Anxiety, Bluster, Boil, Boiling, Brouhaha, Bustle, Churn, Commotion, Concern, Disorder, Disquiet, Disquietude, Distress, Disturbance, Dithers, Dynamics, Excitement, Ferment, Fermentation, Fever, Fidgets, Flap, Flurry, Fluster, Flutter, Foment, Fume, Fuss, Going, Heaving, Hubbub, Jitters, Jumpiness, Kinematics, Kinetics, Maelstrom, Malaise, Motion, Motivation, Move, Movement, Moving, Nervousness, Palpitation, Panting, Perturbation, Quaking, Quaver, Quavering, Quiver, Quivering, Restiveness, Restlessness, Rout, Row, Running, Seethe, Seething, Shakes, Shaking, Shiver, Shivers, Shudder, Stir