Yes. I have a million ideas written in my journals, my issue is picking one up and sticking with it to the end! I'm working on it though.
On a similar note, there was a period about 20 years ago when I seemed to be in a "poetic trance" enthralled by the muse or some such thing where the poems just kept coming. It was a very strange time. Many of the poems were horrible, but there were a few good ones as well. (you know that Hemingway quote --- 1 page of spectacular writing for 99 pages of sh*t).
My advice is to just keep a notebook/journal of ideas and KEEP WORKING ON THE CURRENT STORY!
It's the only way to complete things....unfortunately.