Purplemem...
OH YES.. LEG CRAMPS - FOOT FATIGUE!! By the time I was done cooking a big meal OR doing a lot of baking (like for the holidays) my feet and legs were killing me. We were contemplating buying professional grade kitchen mats when I accidentally discovered that wearing good ol' RUBBER FLIP FLOPS when working in the kitchen made all the difference in the world. We don't have your humidity, but boy howdy do I relate to your leg cramp comment. I'm chunky, but my husband is not and he was also getting leg cramps if he helped me for very long.
TRY IT!