Left side pain during intercourse, family history with cancer and cyst problems, also have headaches, tiredness, and weight gain tummy. Plz help!?

What a mix! I am not sure if all the symptoms you listed are related, but i would start with seeing a medical provider. Start with a comprehensive history intake and physical exam. You may need vaginal exam to rule out problems causing painful intercourse. Maybe some blood studies to rule out fatigue causes. Urinalysis/culture may be helpful to determine ongoing bladder issues. Have your provider work u up.