One of the most frustrating things about having diabetes is feeling like you’re finally understanding it, perhaps even mastering it, only for it to lash out at you and make you feel like you don’t know shit about it.

It’s when you do everything right – check and treat accordingly, eat properly, exercise sufficiently – and still get it wrong when your blood sugars don’t behave the way they should.

I really hate when this happens, but I loathe when it happens on vacation…which is exactly what happened to me last week when I was in Maine for a few days.

Things started going awry shortly after I woke up (if only I knew then that I was in for a DAY!!!). I ate breakfast and my blood sugar swiftly started to rise. But I didn’t panic, because that’s what I wanted to happen. We’d be walking all around town for part of the morning and most of the afternoon, so I wanted my blood sugar to be on the higher side so that my chances of dropping dramatically in the heat were lower. I made the right call – soon after we got downtown, I noticed a diagonal down arrow on my Dexcom app. Things were headed in the right direction…or so I thought.

Not long after I spotted the diagonal arrow, I started to feel a little low-ish. Not super shaky or anything, but just a bit disoriented. I decided to pop into my favorite candy store to fill a small bag with treats so I had something sugary to munch on that would prevent a bad low blood sugar.

Those were mistakes number one and two…not consulting with my CGM again before eating candy, and going to town on it because it was CANDY and it tasted delicious.

Within a half hour, I was rising up, up, and up. I took a small amount of insulin to correct it, not wanting to be too aggressive and risk a real low. But as I walked around the amusement park with my boyfriend and his family, I just wasn’t coming back down like I thought I would. I lingered in the mid-200s for much of the early afternoon, and by the time we stopped for lunch, I was rage-bolusing to bring my numbers down faster. I even chose a lower-carb lunch option in the hopes that it’d stave off another high blood sugar, but nope, the BG gods were not in my favor that afternoon. As we moved from the amusement park to a brewery (a drastically different change in locale, I know), I bolused once again, and then noticed that the batteries in my PDM were low.

And that actually wasn’t a problem, because I was prepared enough to have spare triple A batteries on me – thank goodness! I took the old ones out, popped the new ones in, and waited for my PDM to come back to life. And it did…but it asked me to input the month, day, and year.

Dammit. THAT’S never a good sign. I entered the information and the system accepted it, and then my pod failed immediately after, which meant that I had to ditch the brewery and the group of people that I was with to get back to the house we were staying at as quickly as possible to put a new one on.

It doesn’t get much more irritating than that.

(Later, I discovered that my PDM’s internal battery was going, and that this behavior would occur every time I replaced the triple A batteries. Needless to say, I’m awaiting a new PDM from Insulet, because it’s just not smart to continue using an aging PDM.)

By the end of this day of turbulent blood sugars and unpredictable medical device malfunctions, I was mentally beat. I felt like I’d been thrown into the roughest of ocean waters and forced to tread water for hours in order to keep my head above the surface. It’s exhausting to know that, when it’s all said and done, I was really trying to do the right things and take care of myself. I was SO DANG PREPARED with those extra triple A batteries, for goodness’ sake! But man, diabetes…just when I think I know it better than anything else, it throws me for a loop and I remember a saying from Professor Mad-Eye Moody of the Harry Potter series (of course I’m talking about Harry Potter again, don’t act surprised): CONSTANT VIGILANCE. I’ve got to be aware of my diabetes at all times. I’ve got to know how to react and when so that my diabetes will remain in my charge – not the other way around.