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That can be due to the diabetes --sweating, sweet smell due to the autonomic nerve dysfunction.
Hence you should get your fasting blood sugar and hemoglobin a1c level checked first.
Next possibility can be menopausal.
Drop in estrogen level can cause these symptoms intermittently.
Lastly, this can be a type of migraine headache given that you get pin and needles sweating which can be construed as prodromal symptoms.
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