Hi Marie,
Hope you have recovered from the DKA. I've only had it once (long time ago). Once was more than enough! Do you mind ne asking what sort of work you do? I work in marketing and spend about 75% of my time either working from home or in the office. This makes it really easy to control meal times - I inject and eat as I need to and, as long as the work gets done, my hours are pretty flexible (although usually much longer than I would like... or than my contract states lol). The rest of my time I spend travelling. This makes it harder with mealtimes and injections, especially if I am travelling across multiple time zones etc. Even still, it's still manageable as long as my employers and colleagues are aware that I am diabetic.
Are you able to manage your own working day or do you have designated lunch and break times? Also, are you able to eat at your desk (or whatever) if you need to snack to keep your levels up?
I've never had to agree anything formal with any of my employers, although I don't know what you do so it may well be very different for you.
Em