So hard to work in pain! And it does wear you out, working against it all day. I hope you have tried magnesium. I need 1000 mg a day to avert spasm. Occasionally now that is not enough. It seems to be progressive, and is worse on days I'm very active. Since my feet "got well" from taking p32 for another disease, I have walked a lot more, but my muscles are feeling it. Have to get in shape again. Try magnesium if you have not. I use Twinlabs (easily findable) or some more expensive ones at times. You could start with 800 mg a day (two capsules, not at the same time).