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Don't waste any of your money on this "meta medicine".
There is no way that putting these things on the ears and "scanning" the brain will be able to diagnose medical conditions for you.
The only way to diagnose medical conditions is the tried and true -- with a history and physical examination, and then specific testing, like blood work and imaging tests depending on the diagnosis.
I assume this lady in bulgaria wants to charge a handsome amount for her "services" -- do not waste your money!