Anyone else? (Pains)

So, I guess I'm kind of lost here. I've got things going on that don't feel right and for a while i kept labeling them as food poisoning, too much exercise, etc. But they've been going on for weeks and weeks. It's my fourth pregnancy and it's been by far the most unconfortable the earliest. (Now 27 wks) So i was wondering if anyone else was experiencing these:

- nauseated when baby moves (physically)

- diarrhea like cramps but nothing happens when trying to go (but also not constipated...just feels like i have to go a LOT more often than i really do, and urgently! )

- contractions that hurt pretty badly and remind me of back labor!

- pain in the fleshy part between ribs and hips in back, i was in so much pain it reminded me of a kidney infection but I've been checked.

- incredibly sharp pains in vagina, cervix, and even anus, like bad enough i can't pretend it's not happening!

My doctor didn't really have an answer for anything. I guess I'm asking for some advice or atleast know that it happens to other people! !