Help Me Out With Some Eating Tips For My Trip In Spain

I was diagnosed with hypoglycemia probably about 1.5 years ago. I never really put myself on a strict diet, but I know I should have (should be now). I just follow the guidelines (most of the time), and i've been pretty well besides two major low points after my diagnosis. I'm very good right now. I'm even to the point where I can wake up, and not eat for an hour, and I won't be nausiated and unable to eat, although I will have a headache for the rest of the day.

So, i'm going to spain for the month of july. We'll be doing quite a bit of traveling, but i'll also be taking classes in madrid. The program includes 3 meals a day. But, it says that breakfast is just a muffin. It may be that I am still able to *purchase* an actual breakfast, but i'm not sure. Do you have any suggestions for foods like granola bars that I could eat for breakfast.. Like as my only breakfast.

How are these?
I've gotten some of these chewy honey nut granola bars
i got some fruit granola breakfast bars.. Is that not good for me since the fruit is sugar??
How about the lance toast chee crackers w/ orange cheese crackers and peanut butter on the inside? I eat those all the time (i just mean these as a snack, not as a breakfast meal)

of course, i'll bring granola bars, nuts, crackers, whatever on me at all times in my bag.

Thanks!!