I hear it's perfectly normal to experience a few problems when resuming writing.  It certainly doesn't, at sentence two, feel quite as flowy as it used to.  Perhaps the fingers are a titch toward the arthritic.  Or 10pm isn't quite as friendly as it used to be.  Likely the neurons fired off their quota today and things are a bit slow in the gray matter.

Aging will be full of new and exciting things...new and interesting things....new and probably more boring than anything else.  Whatever.  It just is what it is and we won't be judgemental.  We will, instead, journal as we go.  Attempting to locate the words that capture the moments and give them to you.