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I monitor myself consciously on a daily basis.
Latest example of self health evaluation:
*7 days ago, sneezing and a dry throat, and runny nose. Flu or ???
(1) Took flu herbal drink for 3 days. (2) Monitored oxygen level with pulse oximeter twice a day.
(3) Any fever? None.
*On the 4th day, everything was fine. A bit chilly at night because it started raining. Durian was good, as it is considered heaty. No longer chilly.
*On the 5th day, all symptoms are gone. It was likely a mild case of flu.
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