I am taking lovastatin 20. have developed leg cramps, muscle spasms, cramping of feet, both on top and under. Stiff leg muscles, Planta fashitas on left foot. confusion of letter when typing, errors spelling and some times can not see errors until later when reviewing. My medical friends suggested I check out side effects of lovastin. My colesterrol has been coming down, last result was at 130 I think.