Empathy where have you gone?

I am typically a very empathetic person.  I am thoughtful, I consider everyone's feelings and emotions.  I put myself in their shoes.  Not feeling that way now.  All I can think about is myself.  Joy had a good point today at lunch.  Perhaps its my consciousness getting ready to do battle.  Like it can't spend the energy on anyone but me.  I think I am uniquely suited to this behavior as an only child, thinking just about me has been my instinct for many many many years.  I have spent a whole lot of time suppressing that instinct so as to be a better human, but for now I am just gonna go with it.