Yes, that sounds funny. Because additional demand means increased on its price.
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You don't have to be bothered (if you are) by the price drop it's normal.
BTC is continuously gaiing its popularity that's why more and more people are buying BTC that makes the price increase. And when the price is high some traders exchange/sell their BTC to other crypto or fiat money, that causes the price to decrease. But don't worry, when the price is low people tend to buy more coins, that causes the price to pump up again. Its a cycle, other events also affects its price, like positive/negative publicity, legalizing/banning etc.