"I had one woman who was worked up into tears... She had all the symptoms of flu... Did she have the actual swine flu? I don't know... I had to take tests and send them to the CDC," said Dr. Friedberg. It is this hysteria that doctors fear will cause major problems if there were in fact a swine flu pandemic. People who don't have the flu... Or swine flu... Yet take Tamiflu or Relenza to combat flu-like symptoms, are making themselves more susceptible to a viral infection. "These organisms (viruses) are very smart... They can kind of genetically alter themselves or their genetic makeup to become resistant to the medication, so that if and when you do get the flu... You can't fight it," said Dr. Friedberg. And if the flu were to build a resistance to Tamiflu or Relenza, even the flu vaccine would most likely be rendered useless, as it is developed to treat older and mundane strains of the flu virus. Doctors are cautioning people against jumping the gun and taking medication that is not necessary. But they do say that anyone who feels sick should visit a physician and let that doctor make the decision as to what to do.