Check out the following link for simple home excercises to improve your balance :
https://www.flintrehab.com/balance-exercises-for-brain-injury-patients/
What does the video show?
The video shows you a way to check for yourself at home, if you have a B12 deficiency.
Stand in the corner of a room, such that you can easily reach for support if you fall. Close both eyes, you will feel slightly off balance. If the balance is very severe or you feel like you may fall down, it is a sign of B12 deficiency.
Videos Created By Our Team of Doctors @ Pathofast,Pune