Hi, My 11wk ober/alpine cross has developed a swollen lump (I think it's a lymph node) under his jaw on one side. I noticed it yesterday. It doesn't seem to be getting better or worse, and it doesn't seem to bother him. You can't see it when you look at him but you can definitely feel it. He doesn't show any signs of pain or discomfort and his temp is normal. He comes from a CL negative herd (supposedly), but of course I'll have him tested ASAP. What else could this be/should I worry?