That was a nice big drop last night from the 300's at PMPS to that 192 at 3+. When you have a drop of 100 or more points you probably should get another test an hour or so later. That boy was on a mission last night. Please set an alarm (yes, I know, last thing anyone ever wants to do)..to get up again after an hour or so and test again just in case he's in freefall. It looks like he hit a new low last night and is bouncing today. If he's still dropping you may want to give him some medium or even high carb foods to slow things down.
Night time can often be the time when these kids like to test their water wings...and it's also a dangerous time since mama's are usually tired and we want to get some sleep. A good example of a night time flyer is
@Sarah and Blaze - that boy used to just love his night time frolicking in the lagoon - and his poor mama worked all day and would have to stay up half the night with Mr. I'm Going to Go Low at Night...