Bad days.
I worked 6 days standing on cement. The last day I got a very painful Charlie horse in my calf. I've been feeling crooked for 2 days now. Mostly weird feelings on the left side of my body. Pins and needles and just tired. Allergies are bad too, so congested.
@debbie_c , it sounds like your calf muscles need to be stretched out. Try Exercise 27 on this webpage :- https://www.mstrust.org.uk/life-ms/exercise/build-your-own-exercise-routine/stretching-exercises
My neuro sent me to a physical therapist for bad leg cramps. The stretches I do really work. You might consider investing in a pair of shoes that have springs built inside the heals. I have known some people who wear them for standing on concrete. Potter