Ever since I had kids I find that I worry so much about their health. Any little bump they have becomes cancer immediately in my mind. A fever is always a deathly illness. A rash means some terminal infection. Fortunately so far everything has turned out to be minor childhood illnesses but this track record does nothing to calm me for the next time something shows up. I'm so stressed all the time about this that it is really affecting my joy in parenting. What's wrong with me? Is there a cure for this?