I live near Richmond so this is our 6th day of 42+ degree days.. literally! We do have a reverse cycle air con unit, doesnt work brilliantly, but with these temps im only feel effects from it if im sitting right under it. The cool doesnt reach our bedrooms so have spent a few nights on the lounge. I have been drinking powerade off and on which helps alot. Ive had low BP this pregnancy also so know how you feel. But ehhh what was i thinking having a summer baby!!!! My other 2 were winter babies and oh so much better.
But yes i do feel your pain.. bring on the cool change tomorrow afternoon!

PS.. its still 34 degrees here atm!