It is not a usual symptom of ovarian cancer. Ovarian cancer in someone of your age is quite rare and it usually only affects women who have had their menopause. However, going back to see your GP to disucuss your concern may be helpful.
See your doctor if you experience bleeding between periods, heavy. If fatigue is interfering with your work or leisure activities, stop blaming your hectic life and see your doctor.. These appetite changes may be symptoms of ovarian cancer.