Writer's brain

I have found writing blog posts over here very hard  - I can't write - and I haven't been able to read anything here either,  apart from children's books, to Lux - The Tiger who came to Tea, The Gruffalo, Stickman, etc, etc - because my brain is fluffy. Is it addled by too much telly (i.e. two whole series of Downton Abbey - previously unseen by moi -  and numerous episodes of the beloved Blue's Clues with Lux).

Or is it all the maragaritas that have done me in?

Or is there such a thing as Granny Brain, an older version of Mummy Brain?

Or is it that life with a toddler (or an Aging Hippie, come to that) is too full-on, jam-packed fun, to have chance to sit back and reflect? I think that might be it.