28 weeks and still contracting!

Laura • Substitute teacher and full-time student! Mommy to my sweet little Ryan!
I'm 28 weeks and I've hard pregancy the entire time. Nausea, constant vomiting, heartburn. You name it. Then at 20 weeks I found out I had a short cervix and I started prelabor contractions and had to have a cerclage put in at 21 weeks. I've done decently well until 2 weeks ago when I started contracting again. They started about once an hour and are now fairly consistent at every 20 minutes or so. I went back to the hospital and they gave me fluids and watched me overnight and gave me another round of Indocin to help the contractions. They said my cervix was still closed and the cerclage was in place and let me go home. I'm still so uncomfortable though. Every 15-20 minutes pain shoots through my back and between my legs and nothing I do seems to help. I've been drinking a ton of water and eating bananas, but I'm still hurting. Any advice?