I am waking during the night with horrible cramps and spasms in areas I don't normally get cramps. It sometimes happens during the day as well. Eg. Top of foot, back, stomach, behind knee etc. I also get them in my legs and toes. But I am getting them more frequently now than I ever did. I am sure my body is lacking something. I am drinking lots of Water and taking my Vitamins. I am also taking extra magnesium citrate. I am on day 7 of my pre op diet. Just want to know if anyone else is experiencing this?

I am waking during the night with horrible cramps and spasms in areas I don't normally get cramps. It sometimes happens during the day as well. Eg. Top of foot, back, stomach, behind knee etc. I also get them in my legs and toes. But I am getting them more frequently now than I ever did. I am sure my body is lacking something. I am drinking lots of Water and taking my Vitamins. I am also taking extra magnesium citrate. I am on day 7 of my pre op diet. Just want to know if anyone else is experiencing this?

Could be low potassium.

I am waking during the night with horrible cramps and spasms in areas I don't normally get cramps. It sometimes happens during the day as well. Eg. Top of foot, back, stomach, behind knee etc. I also get them in my legs and toes. But I am getting them more frequently now than I ever did. I am sure my body is lacking something. I am drinking lots of Water and taking my Vitamins. I am also taking extra magnesium citrate. I am on day 7 of my pre op diet. Just want to know if anyone else is experiencing this?

Magnesium citrate is use to empty the bowel. How it works is it pulls water from the body into the intestines to help expell feces. This action alone will cause cramping do to dehydration. You may be drinking enough in your eyes, but the magnesium pulls away your fluids and that alone gives cramps, but your body is also stripped of certain nutrients. It can decrease your potassium and increase lactic acid production which causes the pain and cramps.
Try eating 2 bananas a day to increase potassium and help with cramps. Also, try adding pedialite a couple times a day. This will help balance your electrolytes. Just keep as hydrated as you can and try to stay away from caffeine.
I hope this helps! Good luck!

Exactly what @ColleenErin1974 says!