Brief Answer: List of causes and investigations listed for you Detailed Answer: Hello sir/ma'am and welcome. Thank you for writing to us. I can understand your concern and am here to help you with the most common causes for such a presentation and the investigations that can be conducted to diagnose/rule them out. They are: -Vitamin B12 deficiency (one of the most common causes; especially in individuals with constant diarrhea, colon resection, vegetarian diet, etc.) - check serum vitamin levels -Diabetes (blood glucose profile) -Circulatory disorders (coagulation profile and Doppler ultrasound scan of the affected region will help with diagnosis) -Stroke (will have more permanent numbness and paralysis, not temporary, which disappears in a while) -Vascular conditions (the Doppler ultrasound scan mentioned earlier will help) I hope you found my response both helpful and informative. Please feel free to write back to me for any further clarifications, I would be more than happy to help. Do schedule an appointment with a neurologist and request for the above mentioned investigations. Best wishes.

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