I am a healthy, exercise regularly, eat healthy foods, not overweight 30 year old female. Can birth control cause symptoms like these; often cramping in foot, thirsty, ( drinking gal of water daily-yet have an irregular digestive system) blacking out for a few seconds (with eyes still opened) while having a normal conversation, (I turn pale and am unresponsive, when waking from blacking out, I feel flushed, and feel warm to the touch) My tongue is normally paler than a normal tongue, Headaches, fatigue. I have been tested for diabetes, had a CAT scan, blood and heart tested for everything they can think of, and everything came back normal.