I have been having severe pain that radiates from my lower back to my pelvic area. I've been very nauseous and have diarrhea after being constipated for 4 days. I very sore and the pain is worse when I sit or lay down. I've had a headache that comes and goes, but no fever. My pelvic area has gotten pudgy over the past couple days. I can't close my legs and I occasionally get the urge to push, like I have to poop.. Any advice? Thoughts? Please.. BTW I'm 38 weeks and have dropped some.