My fingers itch. My ideas and words, sentences and scenarios are all rattling the bars of my brain, confining them, stopping me from putting them all down on paper.
A fellow student said to me recently when I complained of not having much time to write, said "you have to set aside blocks of at least three hours and just write!" My reply was "I have three children, a three day a week job, a husband and a house to take care of". He only frowned. I just feel it's selfish to put everything aside to concentrate and start getting it all down. But I have to, before I lose it.
At the same time, I think I'm also holding back worrying I'll pour my life into something that will end as a waste of time. But it's one of those things, you can't hold back a creative urge forever.