Flying to LAX. I had a flight that changed planes in Chicago but the connection was so tight that I was afraid I wouldn't make it with my mobility issues, so when I discovered that the original plane continues on to LAX with a 2nd stop in Vegas, I opted to change. Unfortunately, that means the journey will now be 1.5 hours longer. Diabetics especially, what do you do on a long flight where only snacks are served? How do you keep yourself comfortable for hours? advice please?