I am so glad his thundershirt is helping him and anxious to hear how he does with your next thunderstorm. There is a YT'er that sells these (PoochieHeaven)
http://www.yorkietalk.com/forums/yor...derstorms.html
I have been thinking I should get one for Maddie and Libby...they love car rides, but as soon as we head out of town, they are nervous wrecks.