I have nothing

Really. I've got nothin'. Which is surprising since I normally have a million ideas, and words and just STUFF bouncing around in my brain, but recently... nada. Just a yearning for sleep and endless to do lists. And this bothers me more than you can imagine. I'm not sure the WHYs of this change, but I wish I did know. My deep and abiding fear is that I used up all of my creativity making a human from scratch and I've got nothing left.
I LOVE being creative, it is a big part of who I am and how I view myself - but these days, I'm suffering from an identity crisis. I sleep I work I hang with the Hubble and I care for the Stinks - and it's all good, but I don't create. I make dinner, I don't make art. I'm suffering from a severe and measurable lack of inspiration.
Is it because I am exhausted? I hope so. Or because I haven't put anything inspiring into my brain? Maybe. I'm really really hoping that its lifestyle or tiredness or not visiting enough art galleries. See these options are fixable - they would mean that I'm still creative - I'm just too tired or busy to DO it. And that can be changed. My fear is that I'm not creative anymore. That I've lost that spark - that I gave birth to it, or that is just died from lack of tending and that I'll never get it back. And that terrifies me. So much so, that it's a self fulfilling prophecy. I'm now afraid to even TRY to create - to force it without the inspiration, because what if it really IS gone? Then what? The who am I? And thus begins the panic.
Something is going to have to change though - I need creativity in my life - it's who I am - or at least who I was. I'm going to have to take a class, or paint something, or sculpt something - I'm going to have to find out if, somewhere under all the powerpoint presentations and spreadsheets and budgets and laundry, there is still a woman who can make beautiful things. Because if not... well... I don't want to even think about that...