No, bouncing does not
necessarily mean that the dose is too high.
If a cat is experiencing rebound because it's dropping into
hypoglycemic numbers then the dose is absolutely too high, and needs to be reduced immediately.
If a cat is bouncing because it's having a reaction to numbers that are within 'normal range' - or indeed to numbers that are
above normal range (as some cats do), then it
may be fine to hold the dose. But as with so many things, there's not a 'one size fits all' answer to this. It really does depend on the individual cat...
...For example, some folks will hold a dose, despite the fact that a cat bounces, so that the cat can experience those lower (ie.normal/near normal) numbers and begin to get accustomed to them. (Remember, when a cat has been hyperglycemic for some time it's body can start to get used to those higher numbers and can perceive lower numbers as a threat. So, it's idea of 'normal' might need to be reset.)
But, there have been folks on the forum who've had very bouncy cats for a while and who've decided to try a different strategy: And that is to
reduce the dose to try to get the cat used to a sort of 'medium' range of numbers (just above the 'trigger point') before trying to get it used to 'nearer normal' numbers.
Again, there's no 'one size fits all' answer...
It may simply be that the reduced dose was insufficient.
Or a higher morning BG may mean that the cat has dropped lower during the night, and bounced from that. (Cats may eat less during the night. Caregivers may be less likely to test during the night and catch a low number).
Some folks ascribe their cats higher morning numbers to 'dawn phenomenon'. In humans it is recognised that a surge of hormones causes a rise in morning blood glucose levels
http://www.diabetes.org/living-with...re/blood-glucose-control/dawn-phenomenon.html But this
may also be extrapolated to animals.
Also, cats that are going into remission (or who have a 'sputtering' pancreas), may sometimes have higher numbers in the morning because they've not eaten for a while, and eating stimulates their pancreas to produce insulin...
Although all of the above can seem rather complicated, if a caregiver collects enough data a pattern (and hopefully cause/reason) can often be observed and addressed.
But this is just my '10 cents'. See what others have to say....
Eliz