Crazy cycles

Okay so here’s my time line

Nov 25th 2019 gave birth

Bled 6 weeks ( second week of Jan)

Stopped until February 15th

Started what I thought was my period

Bled until August 10th

Stopped until August 22nd.

Most of these dates were HEAVY bleeding with huge clots. I went to the doctor and they just said I had excessive uterine lining but that long just didn’t add up...now I’m obviously bleeding again and having huge clots. I have no idea what to do but I don’t believe this is normal 🤦🏼‍♀️