Working in creative industries is the best and the worst. On the one hand we get to come up with ideas all the time—on the other hand we have to come up with ideas all the time.
We work late nights on work that rarely sees the light of day. We face more rejection than Millhouse on a bad day, we're in constant competition with our friends and we (shhh) have a drinking problem.
Gabberish is creative therapy for creative minds. Let it out in a poem/poster/cartoon, or share some of the creative stuff you've been doing on the side. You are not alone.