Clearly your sugar shouldn't be anywhere near those values, how high are you when you get up in the morning? If these kind of values are typical, then it might be worth discussing with your prescriber how you can achieve better control.
If it were me, I wouldn't panic about it, but I wouldn't just ignore it.
Probably worry about a sickly diabetic cat, having double glazing the house in progress and not eating properly all added to the problem. Diabetic cat now having blood and urine tests plus a fluid drip at vets so being seen to will help. I need to eat properly today. Thanks for your comments, I will keep an eye on my levels x