I've been experiencing significant foot pain on the flats for at least 5 years now, across various boots and skis. Feels like the arch of both feet is cramping. Snowplowing seems a bit more comfortable than skating, turning, or trying to just head straight. If I focus on forcing the muscles in each foot to relax, I can get a bit of at least temporary relief, but the pain comes right back, and if I'm traversing much the cramp-like pain will travel up one or both legs and leave me with calf or thigh pain, too. Once I reach the end of a traverse and head downhill again, it tends to clear up, but sometimes there's lingering pain/fatigue. I'm ~100 pounds overweight and i'm non-expert enough that it's likely I'm making technique mistakes. I generally try to avoid the flats, and I'm making an effort to lose weight/increase fitness sustainably. Any other tips or suggestions on how to mitigate or avoid this pain?