WordNet sense 1 (an anxiety disorder characterized by chronic free-floating anxiety and such symptoms as tension or sweating or trembling of lightheadedness or irritability etc that has lasted for more than six months):

generalized anxiety disorder, anxiety reaction

WordNet sense 2 (a sharp prod fixed to a rider's heel and used to urge a horse onward):

spur

WordNet sense 3 (wander aimlessly in search of pleasure):

gallivant, jazz around