I think that's a very common problem these days, even for those not normally prone to obessions. e-mail is as disruptive as it is helpful...there are some interesting studies about how badly it affects productivity in the workplace, because the constant flow of e-mail keeps people from thinking things through thoroughly.

Heck, I'm still not much of a fan of the phone. Not that I could live without it, but it allows people infinite opportunity to interrupt you. I also worry when I phone if I'm bothering somebody. Even though it was much less efficient, it must have been a lot less stressful in the days when folks could only correspond by letter!