I don't know where that "need" to create comes from but I feel it strongly. I always feel a deep satisfaction when I make a photograph or paint something or draw in my sketchbook.
In fact, my day always starts out better if I draw on the train on my way to work. I have a "creative" job and this always gets my mind working the right way so that when I get to work I'm already up to speed.
I draw and paint much more than photograph but I feel more creatively rounded because of photography. It makes you approach things in a completely different way than drawing/painting yet is still highly creative. I don't claim to be much of a photographer but I know compositionally, my paintings have improved because of my film use.