Algogenic
Pain producing
Substance P is an algogenic NT
Allodynia
Normally non-harmful stimulus now painful
Analgesia
Absence of pain in normally painful stimulus
Dysesthesia
Unpleasant painful abnormal sensation whether evoked or spontaneous
Neuralgia
Pain in the distribution of a peripheral nerve/nerves
Neuropathy
Abnormal disturbance in the function of a nerve/nerves
Paresthesia
Abnormal sensation, spontaneous or evoked