Today I lost my ten year old tabby cat, Millie. She died within one hour of my taking her to the Vets. It is particularly hard for me because early February this year I lost my Billy to hypertrophic cardiomyopathy. From having 3 cats I now only have one left. Millie was fine this morning, but suddenly developed a respiratory problem and we have witnessed this before when we have hot humid weather. Four years ago it was noticed but she recovered and then two years ago she had to be hospitalized with water on the lungs, again all due to hot humid weather. She did recover and the vets told me to keep her indoors when we have this type of weather. Last year she was o.k. as we did not have much of a summer and this year I kept her in when it was hot. Today she was indoors all morning, until she appeared lunchtime and I knew she was not right. I rushed her to the vets and she was very distressed and I noticed her tongue was turning blue. They gave her oxygen and injections and the vet told me it was serious and could prove fatal and to ring in an hour. However, the hour was not up and the vet phoned to say Millie had suddenly died. They seemingly do not know what she was suffering from. We think this all stems from the hot humid weather and a possible genetic disorder. She has obviously died of a heart attack but there has been no evidence of heart disease. Billy will be waiting for Millie at the Rainbow Bridge.