I have a 5 month old Barbado lamb that I noticed was limping on her front right leg about about 2 weeks ago. She and the other lambs and sheep play so much, I thought that maybe one of the others stepped on her or she stepped on something. I have also noticed that she has been losing weight. She is still eating, drinking and playing with the others. She is now limping on the back left leg. I am VERY worried about her. There are no signs of broken bones, cuts, scrapes, bruises, etc. I am so puzzled as to what could be wrong. Is there anything that I can do from home to treat her or should I just take her in to the vet?