Absolutely nothing unexpected has happened. When a price increases by a large amount very quickly, it always retraces a bit. This happens every single time, and will continue to happen in the future.

Don't just look at minute-to-minute or hour-to-hour price movement. If you do that, then you have zero context, so price movements are meaningless. Look instead at the longer-term price charts. See and understand the patterns. Relax.