I'd say go get yourself checked out - there is still the possibilty you could have diabetes as you may not notice other symptoms if you've lived with them for a while. Cuts etc healing slowly COULD be a symptom. But whether it's diabetes or not, it's not good that your foot is taking so long to heal - you really need to get that checked out asap.
Whether or not your slow healing is caused by undiagnosed diabetes, you need to have it checked out. See your Doctor.
I did not have any overt symptoms, but my blood sugar readings over the years had run in the 'borderline' range ... so the actual diagnosis wasn't a complete surprise. Again, see your Doctor.
Good Luck! Let us know what you find out...
I didn't have any overt symptoms either-and my initial BS was 457! That's right- I wasn't tired, didn't have blurry vision, didn't have big thirst or frequent urination, and my cuts and bruises healed up quite nicely. I thought I might have a yeast infection, but hadn't had one in many years so I went to the doctor to get a Diflucan tablet if that was the case - she found so much sugar in my urine sample, I probably could have evaporated it into rock candy!
Anything that doesn't heal up should be checked out by a doctor. It will save you needless worry- and could save your life!
Let us know how you are and best of luck to you.