Hi Shanifaye,
Sorry about your diagnosis of Type 2 diabetes...looks like your on track though with your diet management and all.
I am a Dietitian and my specialty is in Diabetes. I understand that if you are not on any diabetes meds then avoiding carbs in your snacks is fine but if you are, I would suggest you include carbs in your snacks just so you decrease ure risk of hypo's. carbs SHOULD be distributed evenly over the day (more for main meals and less ofcourse for mid-meals) eg: Breakfast 45-60g, morning tea 15g, lunch 45-60g, afternoon tea 15g, dinner 45-60g, bedtime snack 15g. (just an eg but varies from person to person)
But you did want some suggestions for carb free snacks. I know you found vegies unsatisfying but have you tried vegetable soups?? you can be quite creative with them and I find them more satisfying than munching on raw vegies. Also, try carrot, cucumber or celery sticks with a dip such as salsa or hummus or avocado.
Nuts has been mentioned before and they are a great idea too.
As for your heamochromatosis, not sure if you have been adviced this, but try drinking a cup of tea or coffee every time you have iron rich foods such as meat. The caffeine helps decrease the absorption of the iron. Avoid having vitamin c rich foods such as citrus fruits with any iron containing foods such as spinach, lentils and meats.
Hope this helped and good luck!!