1. A neural stimulation method, comprising: applying a first electrical stimulation signal to a target neural population within a patient, the first electrical stimulation signal directed towards treating pain or neurodegenerative disorders; determining whether counterproductive collateral neural activity exists, the counterproductive collateral neural activity being induced by the first electrical stimulation signal and including at least one of seizure activity and migraine activity; and responding to the counterproductive collateral neural activity when it is determined to exist such that the counterproductive collateral neural activity is inhibited.