I shorted $GERN this morning at 2.40 and watched it all day before deciding to get out at 2.38.  When I went to close my position, I SOLD my short position meaning I just added another short position.  Complete mistake on my part - I am also out of day trades so couldn't correct the problem without invoking PDT rule. Only path out is to hold both positions overnight and BUY TO COVER both positions in the morning.  What a noob...! Only silver lining is I now have one more day trade for the week.