I was having a conversation about this very topic yesterday with a friend at work yesterday. He is dating someone with diabetes and felt a little nervous about the whole thing, because he knew she was diabetic (he had worked with me and had seen the whole glucose meter, insulin, etc. deal) but SHE hadn’t told him. So he was wondering whether she’d feel OK if he brought it up and told her he was cool about it or whether it’d be best to just let it “sit” there and let her open up about it when/if she wanted to.
It sounds to me that it is something that each person needs to decide on, but my personal decision has always been: when I am going to be spending any significant amount of time with a person I am open about it, among other things, out of caution (in case I need help).
For instance, say I am at an event (a conference or an open house, which we have every month at the college where I work) and I am going to be working with some folks I haven’t met before. Since there’s always the possibility that I may experience a low, I let them know that I am diabetic -without making a big deal out of it-, that if they see me acting “strange”, not making sense, etc. to ask me whether I am feeling OK because it could be a sign of a low and I tell them what to do (get me my glucose tablets or a cup of OJ) if I ask for their help while I am low. So, you can imagine pretty much everyone at work knows I have diabetes.