Cramps!

Amber
Cramps are hitting me every 10 minutes now, they feel like period cramps on crack and hurt my back as well! I went to L&D and they told me that I was dilated to 3 and 100% effaced and that I wasn't in labor and the cramps are from a bladder infection. They sent me home after an hour since I didn't dilate. 😒 I have had bladder infections in the past and they have never felt like this before! I feel like everything is going to fall out or I'm going to die 😩 I really think this is labor, but my hospital won't listen to me. 
I guess my question is, has anyone else had cramps like this from a bladder infection? I'm not crazy right?! This is the most pain I've been in this entire pregnancy!