Hi there! Over the last two weeks I have been having bouts of lightheadness, sometimes so bad I can t walk because I m afraid I m going to fall. I also have been having a few headaches and at night sometimes I feel like my heart is pounding hard (not fast, just loud and harder than usual). I also had some bad leg and lower abdominal cramps the other day, but I hadn t worked out in a few days. I am a 30 year old female, I am on a (mostly) low carb diet and have lost 45 lbs in the last two years, and I am trying to get pregnant. I also have a history of migraines and anxiety disorder, but these are not the same symptoms of either