They don't call them 'chiliheads' for nothing.  No one denies that spicy food is painful.  But it's a good pain, and chiliheads understand this better than anyone.  When we feel the pain of spicy food our brains actually release endorphins to help us feel better.  An endorphin rush is the same natural high that runners get.  So you see it truly is an addiction but one of the most pure and safe addictions you can have.  So carry on chiliheads and keeping seeking that rush.