I highly suggest taking both your babies to the Vet ASAP to get an allergy test done. it could be due to something in the food or just something in the enviroment. but whatever the reason take it to the vet and see what they say. If they say the can't figure it out, get a second opinion. Dogs come into where I work and will often times have a food allergy problem. it's rather easy to take care of, but time consuming. good luck.