Oh Lily, we have all been there. The only way to find exactly what's bothering her is to start from zero and go from there. There are TOO MANY things that cause allergies in this world for these dogs apparently. Too, this is the season of environmental allergies.... it's really difficult to say what it is until you can get the test you want. Others will have FAR MORE wisdom on this topic than I. We have a fabulous collection of experts here in EBN! They'll be along!