NT- Did I miss how you actually 'did'it'? Was it a weakness from earlier?
I was walking up the stairs Wednesday evening, having popped down to the workshop to take a photo of a part I was working on. On the way up stairs, as I lifted my left foot up I heard a 'bang' like a paperback book landing with a slap on the floor. I also felt something 'hit' on the back of my calf. I stood for a moment on one leg as I looked around to see 'what fell' before I carried on and didn't see anything. Only when I tried to finish the step I started did I feel the lighting strike of pain in my calf.
It was, I guess, the final straw following a few weeks of hard work that included putting my cut up car on the trailer for the scrap yard, rebuilding a stone wall and lifting on the massive coping stones on top, shifting big logs for firewood and other heavy lifting and carrying tasks.
With hindsight I realised that I do all my heavy lifting left sided. All the weight is on my left hand, left shoulder and initially lifted by my left leg. I even set off on the bike with my left leg putting my right foot on the ground when I stop. I think that stemmed from learning to ride a bike with my left foot on the pedal and scooting along with my right foot.
This morning I woke stiff and aching. My sofa isn't long enough. It has a drop arm but I couldn't drop it as the leg of my loft bed, above, was in the way. So when I got up I decided to shove my sofa back a bit, pushing my desk back at the same time, so I could drop the sofa arm. It now gives me a bit more length to sleep on. It involved a bit of a tidy up and moving some other things like the sewing cabinet out the way and dismantelling (how does <---that spell check to televangelism?

) my weights so they are put away.
I also had a brilliant idea.
I am going to decant my laundry liquid into another bottle and then cut the laundry liquid bottle in half. I can then use it as a 'toe cap' over the end of my cast to protect my toes from minor knocks and injury. I have already banged them a couple of times this morning.
Maybe I should have kept quiet about that and filed a patent for the idea!
Dad has brought up a smaller office chair for me to scoot around on.

It should make life easier but it also has fixed arms on it so they may get in the way. I will try it later.