Do you mamas still hurt?

I’m 7 months PP, still EBF and still about 20lbs of baby weight heavier. I had a C section, and my lower back pain is WILD and constant. I’m not sure if it’s just from carrying a baby in general, or weakened core from surgery? I also am having terrible joint pain that flares up head to toe, maybe different parts of my body at different times. The weather in Michigan is also certainly not helping. Do you all also have terrible joint pain? Lower back pain that keeps you from bending over? Or should I talk to my doctor?