This has been a major fall and there seems to be no sign of the depression stage of a bust, on top of this the population of bitcoin investors has a large ideological component creating excess bullish tendencies. These two things suggest to me that there should be a bull trap at some point and that this is possibly it.

I wouldn't worry about buying back in quick, wait for the depression stage when you can be more comfortable with your choice. If it stabilizes before then it'll cost you maybe 10% to buy in later. If not you'll profit from a lower price and no loss due to a fall.