I have been on Tri-Sprintec for about 1 1/2 month now. A couple of weeks ago I had some cramps in my calf and for last two days I felt numbness and tingling in my right part of body including a cheek and neck. My doctor thinks those symptoms has nothing to do with the pills. But on those pills numbness and tingling are mentioned as a serious side effects of those pills. ( possible a stroke) I am 34 years old and so far haven't had any health problems. The last time I was on birth control pills was 7 years ago and only for about 6 months.