With multifocal motor neuropathy (MMN) there are symptoms of progressive weakness, muscle wasting,
and muscle fasciculations, spasticity. In this
disease, motor neurons are affected mainly that may affect all voluntary motions. Investigations such as blood tests, EMG/MRI, genetic reasons are extremely important in order to know its progression. Usually, there is no permanent cure but effective rehabilitation program would surely help in providing relief in your symptoms. Hope this helps.