Sometimes things go up, sometimes things go down. This is how everything behaves in real life. Bitcoin is taking it's first solid dose of reality here as it normalizes. Statisticians call this regression to the norm. After something does really well, its performance decreases for a time. After something does really badly, its performance increases for a time.

It's not a cause for panic. We've gotta just hold onto our heads and watch the price. It has a perfectly good reason to go up again in the future, but it just might not happen for a while.