I had a c section 11 weeks ago now, and am still bleeding. I called the GP last week and they were not concerned as I had no pain or offensive smell. Originally the bleeding was red, but for the last 8 weeks or so has been like a light period with brown blood. Occasionally I've had a couple of days with no bleeding at all. A couple of days ago, after the longest stretch of no bleeding (3 or 4 days) I suddenly passed a clot about the size of my fist 
Since then, I've finally been having yellowish discharge which I believe should be the final stage of lochia? I have also started getting period-like cramps.
I don't really want to bother the GP again as they have already told me not to worry, and I've had quite a few health issues over the last few weeks. Theyre going to think I'm taking the piss if I go back again.
Has anyone else had this? Does it sound like I should get checked in case they left some placenta in there? Or does it sound more like I'm finally coming to the end of it?