Seems like you, and many other people, especially newcomers, are very worried about every price drop, and try to figure out the cause of changes. First, you should always keep in mind that cryptocurrencies are very volatile, they can rise and fall by dozens percents per day, so if you own some Bitcoins and altcoins, you are always at risk of losing some money due to drops. This is the risk you take for a chance of getting profits from price rises, and if you are not ready to take this risk, better not trade at all.