No, this is not true. WebMD is a great example asking you of simple symptoms that you may be facing and your results could present an apparent fatal disease. This constantly scares the population of netizens whenever they would want a quick diagnosis online through these medical information sites. The best solution to your symptoms is to visit your family doctor or a licensed physician who will give you proper diagnosis checking your vital signs and other related information. Do not always trust the internet and the information it gives you as a user you must take the information with discretion before reacting inappropriately.