We have a two year old female chihuahua that has a swollen lump on the front of her throat. Also, she has a smaller knot on the top of her nose. She never yelped or made any noise. The throat lump is about the size of a plum and she's scratching it. I also dont think it's a lymph node. She's acting completely normal, but looks awful. I noticed it just now and know she did not have it earlier today. Anyone got any ideas?