Hi, I Used To Have Heavy Period For Many Days

Hi, I used to have heavy period for many days due to fibroid , so I had laparoscopic myomectomy and after that I got period once after one month then I didn't get period for two months so I took meprate as advices by doctor , I also have pcos , but after taking I got periods which is v heavy exactly like before the surgery ,now im afraid if this continues , please tell me that if this was bec of the tablet and if this is going to be fine and I will have normal periods from now on or do I need to follow something else ?