It's happened to me. Both of my pregnancies robbed my creativity and "the voices" went silent. Below, I've listed a few ideas that helped me "unstick." The next time you're immobilized in that gray land where the ideas don't come, try one of these tips to get your creativity flowing again.
1. Take a break. Go for a drive, take a shower, grab a nap, exercise. The solution to your problem could be hidden in a different part of your brain. Whether it's a plot hole, or that difficult conversation you have to have with your supervisor, give your mind some time to figure out a solution. Some of my best ideas were born in the shower or while driving.
2. Look for the weird. If you go beyond simply observing and search for the unusual, it's amazing what you'll find. Newspapers, blog posts, and other books can offer a small nugget that answers your current problem. My local newspaper has a section on Sundays titled "News of the Weird." It's a good "what-if?" exercise.
If none of these ideas work, you might have to wait it out. I've found that to be the toughest tactic of all. But if you're patient, eventually your brain will untangle your problem and your creativity will return.