Talk to Gynecologist on Pcos- Postpartum- Irregular Cycle.

I have pcos since 2016 for which I’d been taking piozer 15 mg and glucophage 250 mg as i had always been underweight which helped regulate my cycle, i had my first baby 9 months ago and my dr told me that till the time i breastfeed I won’t be needing any treatment for pcos but my postpartum bleeding lasted for 57 days and then the bleeding kept happening on and off for 3 months like it would stop for 4-5 days then start again, so i was given glucophage again because the dr thought it was pcos messing up the cycle again but it didn’t help so upon getting an u/s it indicated rpoc for which i was given misoprostol and and primolut n for 3 months to fix the cycle, since then I’m getting periods every month but the cycle has gotten irregular again even though I’m still taking glucophage. Pls also note that i have been exclusively breastfeeding my child since she was born, and I’m still breastfeeding her however now she takes formula twice a day too. Pls advise is this normal because I’m br