B12 defiency

I have just been to my doctor and have been told my B12 is very low (76)I am not anaemic which is apparently not usual. My intrinsic factor is also normal. I have been given B12 to take for 2 weeks.
Can B12 loss cause indegestion, bloating etc?  I have had indegestion for a month. In also have a sore tounge / mouth and tingling eyelids. How long does B12 defiency take to get 76? My concern is Have I got stomach cancer as well? Age 49 - good diet, no smoking and light drinker

[jenny2008]

There are a number of causes for Vitamin B 12 deficiency .
Like Nutritional deficiency and malabsorption syndrome.
But chronic gastrointestinal symptoms such as dyspepsia, recurrent peptic ulcer disease, or diarrhea  can also cause Vitamin B12 deficiency
As can infestation with tapeworms or other intestinal parasites.
Your symtoms (symptoms) don't suggest of stomach cancer so please don't worry.

[lw56102]

Besides what was mentioned above, the type A gastritis should be also considered.

[kawasakikz1]

thanks for the assistance