why do random parts of my body go numb

Many things can cause numbness and tingling, including some
medications. Things that we do every day can sometimes cause numbness, including sitting or standing in one position for a long time, sitting with your legs crossed, or falling asleep on your arm. These are all examples of blood flow being cut off to an area for a period of time. There are numerous conditions that can cause you to feel numbness and tingling. For example, an insect or animal bite, toxins found in seafood, a migraine headache, or radiation therapy can give you a feeling of pins and needles.

An abnormal level of vitamin B-12, potassium, calcium or sodium is another potential cause. Radiation therapy can also produce this odd sensation. Sometimes a specific injury can produce numbness or tingling, such as an injured nerve in your neck or a herniated disk in your spine. Placing pressure on a nerve is a common cause.

Carpal tunnel syndrome, scar tissue, enlarged blood vessels, infection, or a tumor can all place pressure on a nerve. Likewise, inflammation or swelling of the spinal cord or brain can place pressure on one or more nerves. Some diseases produce numbness or tingling as a symptom. Diabetes, Raynaudвs phenomenon, multiple sclerosis, seizures, hardening of the arteries, or an underactive thyroid (hypothyroidism, Hashimotoвs thyroiditis) are examples of this.

A stroke or transient ischemic attack (a mini-stroke) are other examples. Damage to the skin via a rash, inflammation, or injury is another reason for numbness or tingling. Conditions that can cause this type of damage include frostbite and shingles (a painful rash caused by the chicken pox virus). Thanks for writing to the forum! Б Injury to a nerve -- for example, a neck injury may cause you to feel numbness anywhere along your arm or hand, while a low back injury can cause numbness or tingling down the back of your leg Б Pressure on the spinal nerves, such as from a herniated disk Б Lack of blood supply to an area -- for example, plaque buildup from atherosclerosis in the legs can cause pain, numbness, and tingling while walking (this is called vascular claudication) Б Other medical conditions, including: o Abnormal levels of calcium, potassium, or sodium in your body o Toxic action on nerves, such as that fromБ Refer: http://www. nlm. nih. gov/medlineplus/ency/article/003206. htm You can read more about this on this link.

A comprehensive investigation is required keeping all the points in mind.

Hope this helps. Do let me know if there is any thing else and keep me posted. Take care!