DD is 7 weeks old, bleeding is still happening and although has gone lighter (only slightly) I'm passing bits (about fingernail sized) of grey, gristly tissue. The past 3 days I've had what feels like after pains from labour which had stopped and I've noticed a slight unpleasant smell 
I'm obviously going to see a gp tomorrow but was wondering if anyone had experience of what they'll do or advise so I can be prepared.