Labour & Trapped Wind HELP!

Ray
Hello,
I am 40+3 and had a sweep done at 12pm yesturday and at 2am tonight  (UK time) I felt like I leaked some of my waters. Since 3am I have been having contraction I think every 12-15mins and have just had a blood tinged show. 
My question is in between every contraction I am getting bad trapped pains which almost feel like a little contraction themselves! Please tell me if this is normal and how i can relieve this as I am struggling to do a no.2! The wind pains are making this more uncomfortable than it needs to be!
Thanks! I hope this is the real thing and that the contractions arnt going to just stop in a couple of hours! X