Editing Neuromyotonia (section)

== Signs and symptoms ==
NMT is a diverse disorder. As a result of muscular hyperactivity, patients may present with muscle cramps, stiffness, [[myotonia]]-like symptoms (slow relaxation), associated walking difficulties, [[hyperhidrosis]] (excessive sweating), [[myokymia]] (quivering of a muscle), [[fasciculation]]s (muscle twitching), fatigue, exercise intolerance, [[myoclonic jerk]]s and other related symptoms. These neuromyotonic discharges can cause bursts of spontaneous motor activity that present either continuously or in recurring, decrementing clusters. They can start and stop abruptly, typically waning in strength and are unaffected by voluntary activity.<ref name="NBK482461">{{cite book |last1=Davalos |first1=Long |last2=Arya |first2=Kapil |last3=Kushlaf |first3=Hani |title=Abnormal Spontaneous Electromyographic Activity |date=July 15, 2023 |publisher=StatPearls Publishing |location=Treasure Island, Florida |pmid=29494068 |url=https://www.ncbi.nlm.nih.gov/books/NBK482461/ |access-date=6 March 2024}}</ref>

The symptoms (especially the stiffness and fasciculations) are most prominent in the calves, legs, trunk, and sometimes the face and neck, but can also affect other body parts. NMT symptoms may fluctuate in severity and frequency. Symptoms range from mere inconvenience to debilitating. At least a third of people also experience sensory symptoms.