(((Rohag))) - so sorry to hear your recent health/psychological problems made worse by the stifling heat. Unfortunately air conditioners fail when they're over worked and its too bad they're so busy. Are you drinking enough fluids? Usually there are cooling centers set up in towns who don't have air conditioning - can you spend the day at one of these? I agree walking only made it worse but you probably weren't thinking clearly. I pray you get it fixed soon and make sure you rest as much as possible.