bananas are a good source of potassium!

I'm glad you caught that; wrt shelves, it would definitely have to be "in a pinch." I helped Bob build bookcases at our former place, but that was 26 years ago (!) so my skills might be rusty.

Thanks for your good wishes! Today, the cramp/spasm is under control, which is why I set the first of my interviews at 11 a.m.; I know that the pain will increasee after noon.