I too have been experiencing the same thing.  it has been going on since 2/2011.  I though it was a heart attack but all test came back normal.  Pain moves between my chest, right side and then upper stomach.  More severe when I lay down but hurts constantly.  I every so often I get a stabbing spasm in whatever area the pain is in at the time.  Doctors do not know what to do or check next.  Any ideas?