Hi there! Two suggestions for glucose tracking that would be more user-friendly.
1) Change the Check-In page to have date movements like the Food Tracking, so instead of using the clunky interface currently existing for previous day Check-In data, it's easier to enter. My glucose meter doesn't list my readings by pre/post meals... it lists them in the order they are taken.
2) Show the Check-In entry fields on the Food Tracking pages as well, so diabetics can see (at a quick glance) how they are doing, instead of having to flip back and forth between pages.
<3 you, MFP!