I don't use facebook hardly at all. So thanks for the offer of sending copies of your notes, but I wouldn't have the time to read them.
Fix your SS day by day, working backward from most recent data and then moving backward in time. That will work.
Any notes you have that could be useful to us, such as when you made the food change from Friskies to Fancy Feast would be useful too. Making a note in the remarks column when that was done would be helpful for us to see.
SS still looks to me like something else happened on 1/25/20. Maybe you changed treats you were feeding, or fed a different flavor of the Friskies pate. Hendrix suddenly went from the pink ranges to the blue ranges in the middle of the cycle, and now he is dropping into the green color coded ranges. Exciting, but scary.
Keeping our paws crossed that Hendrix is headed for remission. Don't be surprised if his BG readings are high for a while. He'll probably be bouncing from all that extra high carb food he got this morning.
Maybe this link about
Understanding the Spreadsheet/Grid will help you out a bit. As you found out, "day" doesn't always mean a calendar day. Think of it more in terms of a 24 hour period. From one AMPS to the next AMPS.
Take good care of yourself. Maybe a nap after the shot this morning. Remember, reduce it to 0.25U for now. We can always increase it again later.