The bleeding sounds normal to me. some women can bleed for a while after giving birth and because you aren't BF then your uterus doesn't have that to help it contract back down to size It is possible that you are getting the fern because you still have hormones affecting things. Some people use them as HPT's don't they? If they do, then it would be picking up on the pg hormones left over.

I don't have any experience with SPD sorry. And I can't remember if I was really hungry or not.