I have a pygmy goat who I think has arthiritis. When she tries to get up on the milk stand it is like her front legs are tied to her back legs. She can only rise in the air about 8 inches and then she jerks and falls back like her legs are tied together. It was especialy bad this morning when it was only 41* She could only get about 3 inches off the ground. She is 4 years old. If this is arthiritis what came I do for her?