Pamela, diabetes makes you feel tired. It's like you haven't gotten enough sleep, even though you have. You have no energy. You can't seem to do the things you used to do because you would rather take a nap. You can get 12 hours of sleep, and 2 hours later, sitting in a chair at work, you feel like nodding off. It's like this everyday, not just once in a while.
You may also feel thirsty all the time, but that's because you are always going to the bathroom. Some people experience weight loss, but I didn't.
Those are the main symptoms....tired, frequent thirst and urination, and unexplained weight loss.