I have very bad health anxiety. i've been having sharp pain alternating between both ovaries at different times. it is not constant, some days don't have it at all. i'm terrified of ovarian cancer. could this be a symptom of ovarian cancer?

The best way to find out would be to see a gynecologist for an evaluation. The gynecologist can examine you and then send you for an imaging study so the ovaries can be visualized. This would be the best way to find out what your pain is from. It could be a benign process-like cysts, fibroids, etc. So, see a gynecologist for evaluation. Good luck to you!