Since birth, I don’t recall having any sense of smell?

I am 25 years old, female from Philippines. Since birth, I don’t recall having sense of smell in anything except menthol oil and cream like Katinko and ammonia. Never been diagnose and have no physical problem nor internally in my nose. Do you know what is my problem?
When I was a child, I was diagnose of esophageal varices and undergo of reverse splenorenal shunt operation and rectal biopsy. I am anemic and only medication I take is ferrous sulphate.

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