 [ Symptoms ] i have sharp burning pain in my right buttock i can not sit for long periods of time i am also numb in my genital area as well [ Disease ] stage 3 kidney disease is not good more than likely associated with your diabetes you are more than likely over weight stay on a diabetic diet see your dr so you can keep track of your a1c and blood pressure also blood work for your kidney disease urine test etc etc ask your dr for a diabetic diet guide also there are several on the internet even diabetic groups who have the same problems you have and you can share your problems and also get help