You did great! You probably saved Sarge's life today! (47 is a scary +3 number.) You should be very proud!
Another post just reminded me that Hannah's pre-shot BG number before her next dose after the near hypo was really high (518). She also was back to drinking water and peeing like crazy. But only for that day. Her pre-shot BG was back to normal the next shot after the 518 and the water drinking stopped a few hours later. So be prepared for a weird high reading at your next dose, and maybe some of the old pre-diagnosis symptoms. It's fine. They go away. Look up Somogyi effect to find out why the BG bounces so high and the water drinking reoccurs after a hypo.
After Hannah's event, I was advised by several members of this forum to also drop the dose back to 1u from the 1.5u that had caused the drop. I looked at Sarge's spreadsheet and it seems like he's been on a higher dose since you started, so it's possible his pancreas is starting to work on its own again and produce some of the insulin he needs, which compounded with the insulin you gave him, was too much. You may want to post again with a different subject line, asking for Novolin advice. Everything I've read so far says to start low and work your way up, but without more experience, I wouldn't want to advise you on where to start.