Diabetes?

My boyfriend has diabetes and he thinks I have it. I eat all the time, I'm constantly drinking something. I pee a lot. My lips have been dry lately and my fingers are swollen now (I don't know if that makes a difference.) I'm really tired and I just don't feel good. Does this sound like it? What should I do? I have to work 6 hours tonight and I don't think I can do it.