If there is a family history of Diabetes
and you fear about it, you might as well go and take a test for the Diabetes screening. You could probably get a fasting and postprandial blood sugar tested and look for the values.
Second, the change in the color of the stool with no change in consistency and appearance means to say that it is due to a change in the diet or probably due to consumption of more greens.
If you do not have associated loose stools, diarrhea
, then it is absolutely fine. You will be fine soon.
Drink plenty of fluids; take bland diet for next few days until you recover.
Get well soon.