Rubbing honey into his gums is only a short boost to his glucose level for maybe an hour or so.
This should be followed up a small amount of carbohydrates, say 15-20mg of his usual kibble to sustain him a bit longer
You will not have any idea of what is going on until you get a meter.
Urine...
He is closer now to being stabilised than when I last posted.
I take it your using Caninsulin.
Trouble is it is hard to fine tune with this, in the usa they use mainly human insulin which can be bought cheaply in Walmart, without prescription, and they can mix their own ratios of...
I got mine off Amazon.co.uk, and as it was calibrated for the Americn market I got it cheap for £64.
There is one on ebay.co.uk now from the usa at approx £65.46.
You just divide the readings by 18 to convert for uk use.
This is not a quick process and everything needs to be kept the same and monitored, with small changes made, when neccessary.
For this you need a AlphaTrack 2 glucose meter.
This site is well worth joining as you can ask for guidance. http://k9diabetes.com/
I have lots of information on this topic I can point you to.
The biggest problem I have is finding a decent vet who knows anything about this condition