I have had a bad cough for about a week. I am so extremely exhausted, not very hungry (I'm eating just because I know I have to keep my strength up). At times I get very hot, then get very cold almost immediately. I have not been to see the doctor yet for personal reasons. I am an LD Tutor, and really can't miss a day of school, because my kids really need me. Could this be walking pneumonia, or just a bad cold? Any help or advice would be greatly appreciated!! Thank you!!!