Hello, My recently diagnosed cat was put on Lantus 1 unit two times a day and her pattern seems to be to become hypoglycemic about 3 hours after the Lantus injection and then spike really high following the hypoglycemia. So for example 3 hours after insulin she will be 50 mg/dl .. then Ill treat for hypoglycemia (corn syrup on gums and some food like the vet suggested) and then she'll go up gradually throughout the night but then by 8 am her gluc will be 400mg/dl... I really don't know much about cats and diabetes at this point. I'm trying hard to learn.. Does anyone know what would be causing something like that? thank you.