I took my CWD to the vet today for de-worming and she died as soon as we got home. She started swinging her head from side to side with her mouth open and her left leg became stiff and twisted back a little. Took her back to the vet and they think she had a heart attack. They want to do an autopsy and said they will call us back tomorrow. We're so upset. Has anyone heard of anything like this happening?