Yeah it was very healthy. High volatility means uncertainty and uncertainty kills financial instruments. So bitcoin's pull to 30000 was healthy because it came after its raise to 40000 so quickly. Meanwhile I personally believe 30000 was just correction and bull run is still not over. It is hard to find entry point in these prices but Bitcoin is still BUY and HOLD for me.
Bitcoin prices wherever rises in a quick way poses a threat of major fall later and is more drastic than the rise. But from last few weeks seems that bitcoin is in a range bound and moving in that zone only which means more or less stable in that range so currently to me does not look we are reaching to that 30k for now.