Hello, I just got the diagnosis for my kitty about a month ago. Oh boy how things have changed in this house! I have converted her to a 100% wet food diet and have her on Lantus currently. I am very successful at home testing and she is even purring during the tests at this point. All sounds like roses so far, but... As of now, she is on a rollercoaster ride in her BG levels. At first diagnosis, my vet prescribed 3 U of Lantus BID 12 hours. Ok, I didn't know anything at that point and did it. No problem. Then I start perfecting my home testing and reading more about dosing and learn that her BG is going way too low. I tell the vet, we decrease her to 1.5 U. Still to low. I decrease her to 1 U. I have been doing readings between 4 and 5 hours after dose and she is sometimes as low as 20! Today, she went from 400s, down to 29, then back up to 450 in a 12 hour period. I gave her 1 U of Lantus for the dose. I do not know what to do at this point! She is not anywhere near the sweet spot of BG, just all around it like a fly trying to get out of an open window! So frustrating! Any Lantus users have any advice?