PARESTHESIAS
Multiple sclerosis.
Nutritional deficiencies (thiamin, vitamin B12, folic acid).
Compression of spinal cord or peripheral nerves.
Medications (INH, lithium, nitrofurantoin, gold, cisplatin, hydralazine amitriptyline, sulfonamides, amiodarone, metronidazole, dapsone disulfiram, chloramphenicol, etc.).
Toxic chemicals (lead, arsenic, cyanide, mercury, organophosphates. etc.).
DM.
Myxedema.
Alcohol.
Sarcoidosis.
Neoplasms.
Infections (HIV, Lyme disease, herpes zoster, leprosy, diphtheria)
Charcot-Marie-Tooth syndrome and other hereditary neuropathies.
Guillain-Barre neuropathy