Numbness, postural tremors weakness fatigue. Is this multiple sclerosis? Mri of brain and spine normal, hyperreflexia. Low B12 and sjogren's syndrome.

Explanation. You mention two issues, and at age 23, am surprised at this combination, but b-12 deficiency can result in peripheral nerve and spinal cord problems which may explain many of your symptoms. Sjogren's can mimic ms and also cause a small fibre neuropathy which could explain additional issues. Do not need an ms explanation here, as doubtful you have that also. Suggest neurology eval.