Thanks for your advise. My backyard 100' X 108' is fenced in and I let her out a few times a day specially in the mornings and late afternoon. She spins around that whole yard going about 30 to 40 miles an hours just a zooming. Oh yes I believe she can beat RoadRunner the cartoon on TV. It really worries me thinking she's going to have a massive heart attack one of these days.

She's a mix breed and she looks almost like a whippet. She has a head of a chihuahua and a body of a dachund. She's about 3 or 4 years old and weighs 10 pounds.

I have taken other peoples suggestion to buy her more toys and chew bones. That seems to help some and again she seems to tear them toys a pieces in a day or two. I can't afford to keep buying toys all the time.

I'm doing all I can. If you think of any other ideas please let me know.

Thanks again , Bill