We took our 14 year old girl in for a "geriatric checkup", but were unable to be in the exam room with her (covid-19). The Vet said her glucose level was over 227, and that here was so much blood in her urine (he had to express it) that he couldn't get an accurate Ph value. We took her to Blue Pearl (an emergency vet service that has more abilities than our standard vet) they did an ultrasound looking for kidney/bladder stones or crystals, but found none. When they checked her glucose, it had dropped to around 200, and the urine sample they collected (by syringe) showed no trace of blood. She won't eat any of the "prescription foods even if mixed with her "normal food". So we went back to feeding her her regular diet of "fancy Feast"canned food in the evenings (weekend only) and IAMS urinary health dry the rest of the time. We started testing her blood glucose 3 days ago with a freestyle lite meter & strips (designed for humans) her readings are as follows: 7/28/2020@10:17pm glucose=87 weight 13#, 7-29/2020@10:15pm glucose=76 weight=13#, 7/30/2020@9pm glucose=77 weight=13, 7/31/2020@9:00pm glucose=64 weight#, last night at 11:30 pm, it was 62 & weight 13#, and tonight 8/2/2020 after dinner (7:30 - 8:00pm) it was 60 with a weight if 13.25#. My wife is very concerned about this, as we have been told that normal range for cats is similar to humans (80 to 120). Is her concern valid or superfluous? what should we be doing/not doing?