There are some unusual signs of vitamin B12 deficiency and these are
Tingling or numbness:
The nerve damage could be caused due to lack of vitamin B12 and this would be shown by tingling sensations, numbness etc.
Memory issues:
Our cognitive function and memory could be affected due to deficiency of vitamin B12. Those with vitamin B12 deficiency would have poor memory, confusion, difficulty in concentration etc.
Vision changes:
Nerve damage due to vitamin B12 deficiency can lead to vision changes like double vision or blurred vision etc.
Fatigue and weakness:
Point is that vitamin B12 plays a role in energy production and its deficiency could lead to fatigue, weakness etc.
Pale skin type:
The breakdown of red blood cells leading to anaemia could lead to pale or yellowish coloured skin that is similar to jaundice skin.
Severe mood changes:
It must be noted that vitamin B12 deficiency can lead to anxiety, irritation or mood swings etc. So, please take care.
Glossitis:
There are also chances of getting glossitis on the tongue or inflammation. This can lead to swollen or reddish or sore tongue etc.
Heart palpitations:
We could get heart palpitations or irregular heart beat due to deficiency of vitamin B12. So this is also another sign of vitamin B12 deficiency.
Muscle weakness or spasms etc:
The impaired nerve function and reduced oxygen supply to muscles due to vitamin B12 deficiency would result in muscle weakness or spasms etc.



