Good morning
@Stephanie91215 ,
1st KUDOS to you for home testing against vet's advise and to Missy for quitting her dry food (it totally toxic for cats)!
I understand your hesitation to administer insulin because of the low numbers she reaches regularly but the fact that she had ketones changes the prospective.
Untreated with insulin and proper food it can lead to Diabetic Keto- Acidosis (DKA), a potentially fatal condition. My cat had it and ever since I check her urine for ketone presence at home with dip strips - sold at human pharma in the diabetic supply aisle - I go to either Walgreen's or CVS, no RX needed, about $15/ 100 ct. I try not skip dosing if possible. Any level of ketones in urine above Moderate requires vet visit, and it is extremely costly. So the general idea is to avoid ketonic bodies build up. For that insulin, enough calories and water are required - please add some water to her food as drinking and peeing extra will help flushing the ketones out. I add a teaspoon of warm water per each teaspoon of food - works well for us.
If you are home and able to test thru the day and have Hypo kit ready I'd be inclined to suggest dosing - smaller than 1U dose but consistently - 12 h apart, twice a day, every day and keep recording the blood test results. If she still goes lower still - either during the day or by the pre-shot time post for help.
There will be more people with practical knowledge of dosing and what to do with ketones if you can start the Spread Sheet going. (Chris was the one who helped me with that in my time (thanks again
@Chris & China !) I read thru your post but frankly I 'd be more helpful if I can see the SS with blood glucose # recorded w/ time and feeding data.
So I tested her about 4 hours ago and her number was 330. I fed her but something was telling me to skip her dose. I just tested her again and now she is 259.
Did you gave her insulin this morning?
What time was she 330 and what time was she was 259? In what time zone?
Please let us know her subsequent test results.
Keep an eye on her demeanor - cats in DKA are often but not always are lethargic, hiding and disengaged.
Once they quite eating it becomes very dangerous. Unfortunately, ketones are vicious enemy and they develop very fast.