I'm so sorry to hear that. You cannot be sure of endometriosis without a diagnosis. Young girls often experience extremely painful or heavy periods. I would recommend you to see a senior gynecologist in this regard. Once you know of the diagnosis you will be able to discuss the treatment and manage your condition accordingly. Alternatively, your condition may just improve over a few years itself.
For further consultation, you can choose from our list of best Gynecologists in Rawalpindi and seek in-person advice.