Paralyzed leg

One of my girls has a leg that just went paralyzed about a week ago. Then the other one started going. She is about 5 yrs old. I've brought her inside and I'm giving her all kinds of stuff, hypericum for possible mareks, electrolytes anti inflammatory, echinacea and goldenseal, colloidal silver and vertrx. She isn't really eating but when I took out to the grass she nibbled on the lawn and ate some chick food. I've been gavage feeding her a yogurt,egg ,etc mixture . A vet said she probably has a tumor but this was only over the phone. Any thoughts ?