Thanks for doing this!
his back legs are still very wonky though, but does'nt seem to bother him much.
This could be neuropathy caused by unregulated blood glucose. Many people find that giving a vitamin B12 supplement (the
methylcobalamin type) helps over time. It can take months but the neuropathy can often be reversed to a large extent. You can find this form of B12 in human pharmacies usually. Look for tablets that are a high dose - eg. 1000 mg - and have no sugar in them.
As mentioned he is currently on 4 units of insulin twice a day, but his bloods don't drop below 16.
This is a very high dose. It's possible he needs a high dose but more likely that he was started too high or raised too quickly in increments that are too large. Too much insulin can cause a protective rebound reaction in BG so it looks like the dose isn't working. It's a very common issue.
I was feeding him 80 grams of Royal Canin Obesity Food twice a day, but have changed that to 40grams of obesity in the evening and a Sheeba in Gravy pouch for breakfast as I thought he might put a bit of weight on this way
He should gain weight as his BG comes under better control. It's possible this food is too high in carbs but I'm not familiar with UK foods.
@Elizabeth and Bertie and
@Diana&Tom might be able to help. The best diet is a canned low carb food. Almost every type of dry food is too high in carbs. We also recommend feeding several small meals a day or allowing kitty to graze if that what he prefers. The only time food should be removed is in the 2 hours before the pre insulin shot BG tests (see testing routine below).
You're already doing the best thing in figuring this out - testing his BG at home. Congrats on that!

Our approach here is to set up a BG testing routine that captures the important data for assessing a dose and keeping kitty safe. We log all the data in an online spreadsheet that can be seen by all members. It's the first thing we look at before advising. Any dose changes are made in small increments of 0.25 u because it's too easy to zoom past a good dose when increasing by more. A tiny chhange in insulin can have a big effect.
Here's the basic testing routine:
- test every day AM and PM before feeding and injecting (no food at least 2 hours before) to see if the planned dose is safe
- test at least once near mid cycle or at bedtime daily to see how low the BG goes
- do extra tests on days off to fill in the response picture
- if indicated by consistently high numbers on your SS, increase the dose by no more than 0.25 u at a time so you don't accidentally go right past a good dose
- post here for advice whenever you're confused or unsure of what to do.
Here's are links to the spreadsheet we use and how to use it. You want to set up the version for a pet meter and in "world units" not US units:
http://www.felinediabetes.com/FDMB/threads/fdmb-spreadsheet-instructions.130337/
http://www.felinediabetes.com/FDMB/threads/understanding-the-spreadsheet-grid.156606/
I hope this helps.