What should I eat to help keep a healthy balance.?

Advice please. I am type 2 diabetic and trying to control with diet and exercise as I couldn't tolerate Metformin. But I am also on blood thinning medication (phenindione). And I'm struggling - any carbs sends blood glucose soaring even low GI complex carbs and my INR is all over the place due to increased consumption of Vitamin K. Can't survive on just protein.