Hi Marcus
I can relate to your worries about going on holiday and fearing that you won't enjoy it due to worrying about being unwell. I found myself in this situation twice. The first time was April 2017, I had a health scare, at this time I wasn't diabetic and was generally fit and well, the scare however was a big one, 3 days before I was due to go away I was at the hospital for investigations, the results would come back while I was away, not ideal but, my partner and I decided that we would go and do our best to not discuss possible outcomes or worry, we would face whatever it was when we got home. Thankfully I was given the all clear.
Fast forward to October 2017, visited the doctor, nothing serious, but being a female of a certain age, it was suggested that it might be a good idea to get a full blood test done, I agreed. The results came back, I was informed by the receptionist that there was an issue with my iron levels, not urgent, go on holiday but come in as soon as you get back for repeat bloods. This time around because we didn't really know what the potential health implications might be, it was a little harder to not worry and surmise, but as soon as we got to our hotel, my partner again suggested that we enjoy ourselves, worrying while we were thousands of miles away wasn't going to change anything, so whatever it was we would deal with it in the appropriate place, home not on hols.
As I'm writing to you via this forum you can rightly guess that this was when I was diagnosed with diabetes. As it urns out there were no concerns with my iron, the results were misinterpreted by the receptionist, I have since that episode signed up to get my results online.
I think what I'm hoping to convey is that you can use your time away from the normal routines to pressures to gain a little bit of perspective, maybe say to your wife that you would like to spend some quality time together and that together you will do whatever is necessary once you return. I expect she is worried too, but if you both make the same promise hopefully you can enjoy being away together.
I don't think you are alone in fearing the worst and imagining that the worse fate possible is waiting for you. However many times this isn't the case, again personally, I have a very good friend who shouldn't be here but is and is well and enjoying life.
I hope you have a wonderful holiday and when you get home things settle down for you. I'm now looking forward to my second holiday this year, life is to be lived in the best way we can.