The onset of symptoms for all ages may include droopy eyelids. A particular form of postsynaptic<unk>  (slow-channel<unk>  includes severe weakness beginning in infancy or childhood that progresses to respiratory problems, and leads to loss of mobility in adolescence or later life.
Congenital myasthenic syndrome
Limb–girdle muscular dystrophy
Lambert–Eaton myasthenic syndrome
Distal hereditary motor neuronopathies
Neurasthenia
Hereditary sensory and autonomic neuropathy
Hereditary neuralgic amyotrophy
Hereditary sensory and autonomic neuropathy type I