I am so sorry to hear you are having medical issues, Joyce. Stress is never good for feline or human. ((hugs from Colorado))
The cycle today may be high and flat because of yesterday's low cycle. You usually get one of 2 reactions - flat and a little high or quite high the first few tests after the low and then the first preshot after. Looks like Simon is treating you to both options.
Regardless, remember, it is just one cycle. Tomorrow's is sure to look different. :mrgreen: one thing I am noting about Simon is that food does really seem to impact his bg levels. This is good because you were able to bring up that low yesterday with food pretty easily. And he also seems to go up after the food at am and pm. (except yesterday when the early lower number was a sign of a low cycle). And when he has gone lower than expected, it is sometimes when he is not eating well. How low is your low carb? Any way to drop down to a lower carb and see if it makes any difference? The other thing to try is to spread his meals out - smaller meals several times a day and see if that makes a difference. Even limiting the first meal in the am and pm to a little less and then putting more down a little later might make a difference.