Huey looks very like my Duchy so I would think he is a tonkinese which is half Siamese and half Burmese.
With the chicken hearts it is no more than 7 a day because of the sodium in them. I usually feed about two or theee raw ones a day to each cat. Look at this link
https://feline-nutrition.org/nutrition/take-heart-but-not-too-much
With the calcium, it is really important to feed enough calcium or you will get problems down the line. I feed one of my cats raw chicken bones three to four times a week for calcium and he loves them. The other cat has very few teeth due to having double lots of back teeth which all had to come out when she was a kitten because they were causing major problems, so she can't eat bones so she gets ground egg shell powder for calcium. If you are interested I can tell you how to do it and how much to give. It is super easy to do...takes 5 minutes to do and lasts ages.
I also feed a raw egg yoke a week each for the B vitamins and other minerals. And acan of sardines in spring water each week for omega 3.
Also about 5 grams of liver a day...Only a tiny amount but necessary for vitaminA and about 10 grams of lambs kidney a day( as the secreting organ which they need. I freeze all the stuff in portion sizes and get out as needed each day.
Even though I feed all the food raw I still give a pinch of taurine a day to ensure enough is given. Minced food also loses taurine as well as cooked. Have you tried kangaroo meat? Sheba used to love it and so does Clover but it makes Harry vomit for some reason. It is very good and the mince is reasonably priced.....at WW.
With the insulin...I am guessing you know that glargine and Lantus are the same thing. We call it glargine and the US calls it Lantus. A lot of vets don't know a lot about feline diabetes and they treat them like they would canines with diabetes but they are quite different. We recommend that the dose is only increased 0.25 (1/4) unit at a time. Most vets increase it a whole unit at a time which is a lot for a tiny cat and it also means that you can go past the best dose.
We also base increases and decreases of the insulin on the nadir ( the lowest point that the insulin takes the cat during a cycle) not the preshot number. Taking a preshot reading is important to ensure that the blood sugar level is high enough to give the insulin but then taking a reading at say +4 or/and +6 ( 4 to 6 hours after the insulin is given) will tell us how low kitty is going and if the dose is right or not. Because members are all over the world we talk in +4 ,+8 etc, not times of the day as people from the US would have no idea what time it is here if we said I took the test at 10 am etc. but they would understand if you said I took the test at +7. Does that make sense?
With an insulin like vetsulin you will see highs and lows each cycle, because of the nature of the insulin. With glargine it is a different type of insulin, longer acting, and which has a 'depot' which over time helps the insulin dose form flatter curves during the cycles, because of the way the insulin is released into the body.
It is all by frustrating and confusing in the beginning but it gets easier. Keep asking lots of questions and read all you can. The yellow stickies at the top of the different pages have a lot of info. Also this link of FAQ is good
http://www.felinediabetes.com/FDMB/forums/health-links-faqs-about-feline-diabetes.14/
I can't see your spreadsheet anymore since you did your signature. Did you click Share on it?
Here is a link to how to recognise a hypo (apart from testing) and if you are testing it is the best way to keep Huey safe. But it is good to have this info. Do you have honey and high carb food in the house in case it is needed. If you are using an Alphatrak the take action number is 68. That is when you should give some honey or high carb and retest in 20 minutes to make sure Huey is coming up higher.
http://www.felinediabetes.com/FDMB/threads/how-to-treat-hypos-they-can-kill-print-this-out.15887/
We will probably be watching the fireworks on TV as well although we can see them fairly well from our balcony. We can just see the harbour bridge but not the bottom half with the fire works which spray downwards. We have just had a huge electrical storm go through which must have soaked all the thousands of people gathered around the harbour waiting for the fireworks at 9 pm and midnight.
All the best for 2019 to you and your family and to your furry family. I hope your doggie keeps improving. We can help you get on the right track with Huey, but it takes time. It is not something that can he fixed in a week. Insulin is a hormone and it takes time to work
