Felix is 8.5 lbs and eats HS WD dry 1/4 cp (won't eat wet) 2xs a day. This is 1/2 rec for ideal weight so like the vet said I shot 1/2 U but he was tired and has not increased what he eats. It's was only three days on the new food and meds. Yesterday he ate the same and I gave him 1 U. He had more energy and seemed to be better. Vet did not like home testing but I still want to do it. Who knows what could happen in 6 months of not knowing his levels. I look forward to learning how to best help Felix have a happy life. Thank you in advance for your help and making me feel like I am not alone in this.