Should I go to the doctor? TMI warning!

Hello ladies, I'm a FTM so I have no idea what is going on, I'm hoping that you all could help me.

I'm 32 weeks exactly with a little girl. For the last 3 days I've noticed that from time to time I'll get braxton hicks (or so they say). At first they felt as if there was LOTS of pressure and tightening of my tummy along with a small amount of pain with a small feeling of my insides being tugged downwards.

So... Here's the TMI... I've went to the bathroom 3 times today to go #2 and they were ALL fairly soft/loose. This has NOT been normal for me. Along with that, I've been getting very crampy as if I've REALLY REALLY REALLY gotta go but the cramps aren't just in my tummy, they warp around to my back and no matter what I do, it won't let go for at least a minute. No, the pains don't come in normal intervals but are very intense.

Any and every bit of advice is helpful!

Thank you!

- A very confused mommy