Hi, Wrinkles, I guess your absence from singing an mine are of about the same length. In my case it was a lung problem which led to loss of confidence and stage fright (something which had never bothered me before!).
I struggle sometimes to remember the words, but usually get most of them back. Problem is, I can't stop rhyming even when I can't sing them. Thank heaven for Mudcat, at least I can post them.

FC