How many stories/books are you working on at any one time?

Or, Am I just a masochistic multi-tasker? I've got about 5 or 6 works going on at any one time. I get inspiration to write in each one at different times so it works for me. But I'm wondering how many other writers out there do the same thing?

My real problem is, I get too many story ideas, as in completely different story plots, arcs, characters, everything, that I have to get them down or I can't work on anything else. It's usually a chapter here, a chapter there, reworking some plot ideas, tweaking a character there. I have about three that are just starting with notes and no writing yet, 1 that is almost complete, and 4 that are somewhere between those.

So, just how crazy am I?