Why cant i loose weight?

Im a big body builder and lift about everyday for 2 hrs straight. I have 17inch arms and I can run about 3 miles pretty farly. But biking or running doest do anything for the fat I have. Im 220lbs but I don't feel over weight but you can see my rolls. I eat very healthy and iv been this weight for 3 years. I gain musscle fast but can't loose this stomach body fat. What ca I do?