P.S. It's called: Intervertabral Disc Disease (IVDD)......
Hello Bubba...There's NOTHING you can do at home for your dog...You don't say what breed or age this dog is......It sounds like a Herniated Disc/Disk somewhere in his spinal column......You must seek Veterinary treatment immediately........If you hurry, this can be reversed with the proper medications from your Vet & Strict Crate rest for up to 6 weeks.....
Without enough information from your post......This would be my best guess.....Please, get going.......You don't have but around 24 hrs. to reverse this.......Come back and let us know how he's doing......Good luck, Karla