Hi Ashley, its sad watching them suffer…..you dont say how old ur girl is?? I had a boxer Angie, she started to go down hill at 9 years old with Mast Cell Tumors… but this is different what is happening with ur girl….I would be getting the CT Scan, its the only way to see what is happening, it could be coming from her nervous system & brain thats why the x-ray aren’t showing anything, the CT scan will show everything, it may be something simple & she may just need meds, she is losing weight, something is wrong, it breaks ur heart…..do you belong to any boxer groups, on yahoo or face Book there’s a few Boxer groups around, as they may have had a boxer that had the same symtoms…..Good-Luck
