I have no advice on this but I just had to share this story... last night we had a thunderstorm and I was laying in bed when I saw a flash of lightning. I thought we only had lightning in the summer, and we had talked about nuclear war in school on Friday... therefore I thought the flash must have been a nuclear bomb. So, bursting into tears, I grabbed Daisy and started to run into my parents' room... then I heard the thunder.. amd thought that it must have been the sound of the bomb exploding! So I was a total wreck, dragging my sleepy hound into Mom and Dad's room.. I woke up my father first and sobbed to him that Russia had bombed us with anuclear bomb and we were all going to die. He looked outside and saw another flash of lightning and heard the rain and just started laughing hysterically. Then when I realized my stupidity, I joined in the laugh fest. I feel so stupid now! Hehe I just had to share that story. Daisy, by the way, is not bothered by thunderstorms at all, but my cousin/neighbor's Bernese Mountain Dog, Joey, who is now at the Rainbow Bridge, jumped through screen doors or windows whenever there was a storm. He passed away still fearing them. Good luck with your doggie!