Ooh ooh!! That's me too. When people ask "are you or morning or evening person?" I have to reply "What the fuck has it got to do with you?" & then I remember my manners & say "both, it's lunchtimes I can't manage". Always been an early riser but could cheerfully stay up til 2 every night. My afternoon energy slump is appalling - I have to fight to stay awake at my keyboard sometimes.