My cat has been on Insulin (1 dose) for 5 days now. I am going to start testing him multiple times a day and I was wondering what a daily cycle would typically look like. For example if I test him at 8:00 in the morning before his needle (he gets his needles at 8:00 AM and PM) would his number typically be low because he has not been eating during the night or high because he is 12 hours from his last needle? Once his has his needle (I feed him while giving him the needle) how long before the insulin would typically kick in for me to do a retest of his levels? I don't want to do test in 30 minutes if it takes 2 hours to kick in. He allows me to do it but I am sure it is not pleasant.