Millie is an 11 yrs old calico on 2 units of ProZinc insulin twice daily and an asthma inhaler twice daily as well. She is scheduled for some teeth extraction in the morning and I didn't think to ask her new vet about giving her insulin. Millie is due at 2 am and her bg at 21:30 was 181 from Relion Prime meter. She is/was supposed to stop eating at midnight. Should I give 1 unit (half dose) at 2 am with a little food or not give at all since she won't be eating all day?