DEAR DOCTOR K: I have a terrible fear of heights, dogs and public speaking. My sister calls them "phobias" and says I should seek help. How do I know if my fears are normal, or if I need treatment?
DEAR READER: We all have things we worry about or are afraid of. And with most of them, we're right to be fearful. But in people with a phobia, the fear is persistent, excessive and unrealistic. As many as one in 10 people suffer from phobias at some time during their lives.