I have about 2 hours to go before my colonoscopy, and I will be happy to get this over. Still feeling kind of nauseated right now and have a headache. Prep was disgusting as usual and my stomach is still gurgling, but what was worse were the muscle spasms. About 8:00 last night I started to experience muscle cramps/spasms in my right foot. Then I started to have them in both legs. They continued to bother me all night and this morning both legs are really sore and my left leg is more stiff than usual. I assume I may have lost too much potassium