Anyone else ever get painful leg cramps

Lately, my plantar fasciitis has been acting up big time. I am seeing the podiatrist again on Thusday. I am going to get orthotics. In the meantime, yesterday I stuck an over the counter insert into my shoes. They are the same type I worse last year which helped. Anyway, I'm not sure if the inserts were the cause or not, but before I went to bed last night, I was walking around barefoot, I got something out of the fridge and had a severe and very painful charlie horse in my right thigh. It hurt like hell. It subsided after about ten minutes, and I went to sleep. However, all night, cramps in both legs woke me up. Now, I have to teach on only a couple hours of sleep. Since this is so unusual, I don't normally get leg cramps, I am worried that something is seriously wrong. More likely though it has something to do with wearing the inserts. I never even got leg cramps even when I was in good physical shape and was running. Maybe I should call my physician.