I have severe panic attacks from the heat. I am now on Xanax and clonzapam to calm me down, but isn't enough. I deliver goods in an un-air conditioned delivery truck. The trucks reach every bit of 15-20 degrees hotter than outside which is 90 or more right now. I can't deal with this and it is affecting my job performance. Not sure what to do at all. I try using ice, singing aloud, etc. It is getting to the point where I might just have to quit my job. In addition to the attacks, I have been diagnosed with hypoglocemia- low blood sugar. Any others out there, or quick fixes. Temps here have been 100 every day....