<unk>  is a clinical feature of many painful conditions, such as neuropathies, complex regional pain syndrome, postherpetic neuralgia, fibromyalgia, and migraine.<unk>  may also be caused by some populations of stem cells used to treat nerve damage including spinal cord injury.
Allodynia
Myalgia
Tenderness 
Tickling
Nosophobia
Irritation
Neuralgia
Thermophobia