Having read through the thread since my first reply, I think that anxiety is the thing you need to seek support with alongside your worries about diabetes.
I've read a lot of threads and a lot of information about how T2 in particular shows up in people and although there are things you are concerned about none have made big flashing lights have gone off in my brain and, from reading comments, the same applies to far more 'experienced' diabetics than me.
Of course, you must seek GP advice and no one is giving medical advice as we can't but as Jo said above, anxiety can cause a whole load of problems. My husband was taken to hospital in an ambulance for heart checks but all turned out to be due to his anxiety. I always say, you can make your little toe throb with pain if you think about it hard enough.
You are probably adding to your anxiety as you can't get to a doctor's straightaway to find answers and that means it's all building in your mind as you over think it. Been there, done that!
Try to relax, ask for advice, eat lower carb if you want - but remember to breathe. Enjoy the rest of your holiday.