Your symptoms are less likely to be due to seedling fibroids. Regarding PCOD, it is likely to the cause for irregular & heavy periods
which can be treated with medicines. Pain might be due to endometriosis
which is difficult to diagnose on ultrasound
. If you are getting good symptomatic relief with medicines (tablets prescribed by your doctor) nothing needs to be done. If symptoms are severe & not responding to medicines, its better to go for laparoscopy
for diagnosis as well as treatment of the cause.
Wish you good health.