Hi, you've misunderstood me...I get sick feelings when I haven't eaten food - the feeling only stops when I eat
No, I understood what you meant
What you've described isn't a symptom of diabetes, as I said.
At 18yrs old, a person would be more likely to have Type 1
if they did have diabetes. The symptoms of Type 1 are pretty unmissable. They are feeling extraordinarily tired, a thirst that you can't quench however much you drink, numerous visits to the toilet to pee (a number of times an hour) and a sudden, dramatic weight loss.
You don't have any of those symptoms.
In addition, Type 1 doesnt 'run in families' usually.
Obviously, if you have any concerns about your health eg the sick feeling, then you should visit a doctor, but from what you've told us, I personally can see no symptoms of diabetes at all