When I lived in New York I didn't have an air conditioned house, I know how dreadful it can be. Maybe you can buy a window a/c unit and keep it in a bedroom for your dogs while you are out. Basements are nice and cool too. When I was little my playroom was in the basement, when it was too hot outside I'd go and play down there.

Here in Florida it's way too hot and humid to walk the dogs during the middle of the day so I either walk them in the morning (7 am) or in the evening (7 pm). I prefer the evening because my husband is home from work then. When I don't walk them I throw a ball around with them in the yard, I think Nacey likes that better anyway. They go outside to potty several times during the day, but they don't stay out long.

I understand getting stressed. It's not my pets that cause the stress though, but they sometimes do add to it. We just moved and all my pets settled in rather nicely, with the exception of Bitsy, my pomeranian. Bitsy has never done well with change. She got an upset stomach and diarrhea, she's now on meds and a special diet. Worrying about Bitsy and having to stop and clean up diarrhea in my new house several times a day was definitely stressful. The meds and special diet are helping now and things are much less stressful. I haven't wanted to leave the house either because as soon as I walk out of the house she gets upset starts barking and then gets an upset stomach. My sister and parents were over here one day and I thought I could go out to the barn with my dad and she'd be alright inside with my sister and my mom, but as soon as I walked out of the house she started barking and got sick. She's starting to do a little better now and I know she'll keep progressing and soon will be fine.