An early shot acts like a dose increase You might want to give Diamond some food that's a little higher in carbs. How many hours after shot time will it be until you are back home? (I think there's a good chance that Diamond may bounce given the 145 this afternoon but it's best to leave out extra food just in case the numbers come back down while you're gone.)
You have the option of moving shot time back by 15 min. every shot time (i.e., twice a day) until you're back on schedule or shifting the time by 1/2 hour once a day.