Yes! My issue right now is worry about Melanoma. I have a lot of moles and my son who is 4 started getting some too. I know it's normal for kids to develop moles but I can't help think "Oh GOD he's at risk now too and I've doomed him with my crappy genes!!!" But then I tell myself, as far as he's concerned, he's not done growing yet and who knows how it will turn out. By the time he is older we will hopefully have so many new ways to treat diseases that he'll have little to nothing to worry about. Just think of how far we've come in the last 30 years!
One thing to watch though, as I have experienced this, is how your HA affects your significant other as far as their moods. These people love you and care about you, seeing you sick with worry will make them feel awful. I'm not saying that to sound cruel, but it's what I use as my motivation to make myself get better.