Welcome to the Bitcoin world. 
Yes, last two days were typical bitcoin price level's swing actions just to get excit and to get scared. Honestly I got practiced to experience these and just enjoyed this rally of ups and downs. Maybe the reason is I'm still confident that bitcoin prices are heading toward $1500 or even $2000 in very quick time like before the first quarter of 2017.
Same here but news said that the possible setback of Bitcoin price is the Yuan value getting stronger. And the announcement from China's central bank
Quote
China's central bank urged investors to take a rational and cautious approach to investing in the digital currency, which is on track for its heaviest two-day drop in two years.
From : http://www.reuters.com/article/us-global-markets-bitcoin-idUSKBN14Q1M1The announcement came after they saw an abnormalities on the fluctuation of Bitcoin for the past days. They even stated their previous prediction of 2013. So probably this is one of the cost of Bitcoin price drop.
Anyway, I think bitcoin will recover after somedays. This is probably the best time to take advantage of the lower price.