That's why posters are asked to try to start a new condo daily rather than posting anything in one from a previous date. Otherwise it can be really hard to figure out whether a question still needs to be answered or in which condo your answer should go. If you come online and see that someone asked a question or gave you some information in Boots' last condo, don't answer it in that one or edit that one at all, just start a new condo with today's date and say "yesterday you asked . . ." or whatever. Then everyone knows where the current information is and the board doesn't get too cluttered.
The 59 isn't dangerously low and it's probably around nadir, which is why Sienne just suggested to get another test in an hour. It is a big drop, though, so don't be surprised if Boots' next preshot BG is pretty high since he may bounce from the quick drop. If possible tonight I would suggest getting a test earlier than the +5, like maybe a +3, so if he is headed for another very quick drop you can have some warning.