Those are very high readings Loubylou.
Readings can go high at times of infections, stress, post operation, time of the month.
I had an operation and in the following 2 weeks I hit 28 one time, personally I didn't feel that different just a bit woozy and plenty peeing :lol: but I did get to a doc who ran various tests and I was given Ketostix to check whenever over 15 that I wasn't getting Ketones (moderate to high Ketones and high readings can be a serious thing for Diabetics, although a rare occurence in T2 - your profile doesn't show your type).
Thing is, those high readings should calm down after a few days maybe a week. But you're still getting those high readings two weeks later, you've done the right thing by calling your doc only he/she can give you guidance on your health. It could be that you will need medication now to help (I see you're diet only). Hope you will get seen soon.
I went from Glucose impaired to Diabetes within a few months and now on medication within 1 year. Through no lack of effort on my part may I add :angel: some Diabetics no matter what just need some extra help
However, if you do feel ill and have those high readings you are best to call NHS24 for guidance.