Misery loves company as they say - and it looks like several of us are sharing in it right now.
@Charlie-Eve-Ryan it is so funny you should bring up the neck/shoulders issue.
I have been grinding away for long hours over many weeks now finishing up the two books I have been working on. A few weeks ago started noticing some neck soreness which has slowly started to have times where it sends out some numb/tingle feelings near my shoulder. I am betting its a pinched nerve or something in my case. But it definitely has been impacting my work this past week and is a perfect reminder of how we need time away from the easel or computer screen.
I have made sure to go exercise and definitley feel like it is loosening up some after I do my swim training. (Which I had not been doing because I felt so overloaded and behind on work). Lesson learned - that darn exercise is important!