I can't advise you on insulin doses, I only wanted to send you a hug.
Must be really hard, especially with the lack of sleep you must have by now. It won't help you tonight, but would it help on the longer term to try to get a cgm with an alarm for lows or highs? That way you would only have to wake up when it gives an alarm.
And, not helpful either, but most diabetics experience blood sugars having a mind of there own, even if we do everything the same as yesterday. Can be time of month, a change in the wheather, a bad dream or whatever.
All the best for the both of you and I hope you'll have a good night tonight!