My Lola the past two weeks has been having some front paw pain. Ever couple days she will land wrong or move wrong while sleeping and twist her front arms. When this happens she lets out a horrible scream! Then she will whine really loud like she is dying for a couple minutes, after that she will limp for 15 to 30 minutes then act fine like nothing happened. It is different legs each time but always the two front, any ideas what this could be?