I'm 4 days PP and starting yesterday, my abs/stomach are so sore. My mid-back is achy... I think mostly from poor posture from BFing.. but my front mid and lower section is really sore. Is this common after having given birth? It's almost like I had a tough ab workout. I'm assuming things are just working to get back in place.. but just thought I'd ask you mommas to see if any one has experienced something similar?