Blog Block

I was wondering if anyone else suffers from blog block (BB). What is BB?

BB, for me at least is all of the following.

1. Not remembering what you have written previously.
2. Knowing you have something you wanted to write but cannot remember what the hell it was on the Tube/Queue that irked/tickled you enough to write about it.
3. Having stuff to say that fringes on a subject you cannot discuss.
4. Writing some meaningless crap about writing meaningless crap.

There are more but I can't be bothered listing them due to a severe case of Blog Block. Having had a look around it would appear that this is a common occourance.