Is it common for a young woman at 25 to have gall bladder problems?

For the past 2-3 weeks I have been experiencing nausea without throwing up or diarrhea and I also have not had a fever. I went to the doctor yesterday and she thinks it might be my gall bladder. I go to have an ultrasound done tomorrow. I am really nervous. Has anyone experienced this or seen this much in young women?