I am so glad I found this thread. Our chihuahua has had 2, she is almost 12, the first one was during the night when I woke up I was wet and the bed was wet(she sleeps with me) this was about 3 months ago, this morning before daylight she had another one, she was whinning like she was in pain, rigid to the touch, and again peed all over the bed. I called the vet, he wants to do blood work, to rule out diabeties, we are taking her tomorrow. She has been acting like she is starving late in the evening, she eats about 4:00 and she will bark and want to go out and bark wanting something to eat. It is so flustarating we know she isn't hungry. She will drive you crazy acting like this. My niece talked with a lady, whose dog had almost died from eating Beneful, the dye that are used in it were causing the problem. That is what we feed Penny, I have tried other kinds, but she won't eat it. I am now worried about this being Penny's problem. The vet said he hadn't heard of this with the Beneful. Have any of you heard of this? Sandy