If you are seriously worried about diabetes, go get your A1C checked. There could be dozens of potential things that change your breath, but I wouldn’t be super alarmed just because of that.
On a separate note, diabetes is something everyone should screen for and try to prevent or manage early.
Fruity breath= possible diabetes. Bad breath = weight loss due to the keystones in your saliva from your body burning fat.
I worked with someone who did competitive weight lifting and could always tell when she was cutting for a competition as she had “old man breath”.