Postpartum Question

I had my baby 12-28-20 , I bled 4 weeks and 2 days later for a normal 7 days (like my normal period ) the period was 1/30-2-6 . Then 4 days later I’ve been spotting usually it’s light spotting , randomly a lot will leak at once. But I’ve had horrible cramps ever since . That’s a little under two weeks of constant spotting and cramps . What is this ? Has anyone had something like this ? Do I need to see a doctor ?