There is some good info on the health pages (top right) on types of cysts and symptoms. Some women have pain while others don't and doesn't seem to matter the size. Pain is often due to the pressure the cysts place on our other internal organs. Many will get either diarrhea or constipation, gas, and either urinary urgency or problems in emptying the bladder. Some get headaches, fatigue, bloating and weight gain, edema or may have hypothyroid symptoms increase.
Depending on the type of cyst some can affect fertility. You need to discuss that with your doctor.