Anyway, I got home from work a bit early today, dusted the multigym off and spent half an hour on that, so I should think I won't be able to move my arms, neck, shoulders or back for the rest of this week
Could be worse...I feel like that WITHOUT taking any exercise.

Actually I was a regular gym attendee at one time - 3 or 4 times a week, plus a York 2001 home gym in the kitchen.
Then I was working on construction sites and tunnelling until well into my forties.

Now my son is really into the body-building, and looks super fit and strong.

MUST go and get back into shape !!!