You're the first person they call for help, but it's not the kind of help you want to give.  You want to give feedback on the important pitch or be part of the team solving the mission critical challenges.  But instead, you're the go to person for getting new toner in the copy machine.  Or handling the coffee order.  Or taking all the meeting notes, but never leading the meeting.  Or arranging all of the office birthday celebrations.  All of a sudden, you're the office mom - even if you don't have kids.