
Having Benign Fasciculation Syndrome. Have Shaking In Legs And Deficient In Vitamin B12, D And Iron. What Else Could It Be?

Thank you for posting your query, and providing detailed clinical information.
First of all, I would like to reassure you that your symptoms do not suggest neurological disease. I agree with your neurologist that the most likely cause in your case is benign fasciculations syndrome. It can go on for a few more months and then disappear. Also, I agree with your family doctor that the deficiencies of vitamin B12, D and iron made this worse.
In ALS, there would be thinning of muscles, weakness of muscles, difficulty in speaking, swallowing, and the symptoms continue to get worse over time. In your case, these are absent, so, I do not think you have ALS.
Swollen, red tongue could be due to riboflavin deficiency.
I also agree that stress could make your symptoms worse.
I hope it helps. Please get back if you have any more queries.
Best wishes,
Dr Sudhir Kumar MD DM (Neurology) XXXXXXX Consultant Neurologist


XXXXXXX shaking and vibrations could be part of vitamin B12 deficiencies rather than BFS.
I think you can wait for the B12 treatment to get over before consulting the neurologist again.
I do not think your symptoms suggest MS or PD or any other serious neurological illness.
In cases of ALS, within six months, one would notice definite progression in the form of thinning of muscles, newer parts of body getting affected, or weakness, etc. So, if you do not progress for six months, you can be confident that you do not have it.
Best wishes,
Dr Sudhir Kumar MD DM (Neurology)


The current symptoms are not suggestive of bulbar ALS.
In bulbar ALS, as you mentioned, there would be problems with swallowing and speaking, with nasal twang in speech and nasal regurgitation of liquids. In addition, there would be thinning of tongue muscles.
So, there is no need to worry at present.
Best wishes,
Dr Sudhir Kumar MD DM (Neurology)

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