Bad pain 27 weeks pregnant?

I am 27 weeks pregnant and experiancing really bad ligament pain. I know this is normal but at times its so bad i can hardly walk. I am not overweight and I am fairly healthy. I get the pain in my legs, back, ribs, groin, and sides of my stomach. My gyno prescribed me panadiene forte which i have taken but it dosnt help! I have also tried hot showers / baths, heatpacks and dencorub but nothing works. Is anyone else suffering like this? If so, what do you do about it?