Numbness is another symptom linked with all kinds of different nerve damage. This happens because the nerve is not only responsible for sending signals to the feet and arms in order to move them, but also for receiving signals from those areas in order to provide spatial information for the brain and in order to relay pain and coordinate movement.
Numbness felt in the spine, therefore, is possibly due to the nerves no longer effectively doing their job and delivering their signals, and this can also cause issues with receiving signals from other parts of the body too. You may find that when you touch your leg or arm, you don’t feel the sensation with the same clarity or resolution that you normally might. If you’re still unsure what that is like, then try to think back to the last time that you got a dead leg from sitting in the same position too long, or from being kicked there – it’s a similar sensation.
There are several other things that might also lead to numbness in these areas, including slipped disc, low vitamin B12, or growth. If you notice persistent numbness, you should always be checked out.