Gentle fluttering in upper left calf . 27 year old, relatively healthy female. Work full time in a desk job, walk, eat well, don t smoke or drink very much. Have been on microgynon30 for about 7 years. It doesn t hurt nor is it constant, it just comes and goes, more noticable at night. It s almost a pulsing, but very light. I can t see anything, no colour change or swelling .