Lbs and am now in a healthy bmi range. do i/could i have acanthosis nigricans or diabetes?

I can't tell you: But your chances increase as you get older and as you get heavier. Also increased if you have a positive family history of type 2 diabetes. Acanthosis is not a disease, but a physical finding. Your doctor can tell you if you have it. Why worry -- start a weight reduction diet and exercise program now. Don't wait until your doctor determines you have diabetes - delay or prevent it now.