Can I drink Diet Coke when I have type 2 Diabetes?

Nuff said. I’ve cut out Alcohol , Smoking, Juices, Sugars, junk food etc from my diet. I’m desparate to get a little normalcy – enough to just drink Diet Coke or Coke Zero perhaps? Is this safe for Type 2 diabetes? If yes – then in what amounts? http://bit.ly/qRcKed