I had my son 2 years ago, when he was about 3mos old symptoms started of me getting lightheaded and feeling faint, and extreme nausea. When its hot out i get it even worse. Sometimes ill be gassy (burping) sometimes that helps, other times its a different kind on nausea, its off an on so irregularly. Sometimes ill be bed ridden for weeks, other times its just an unsettling feeling in my stomach. Other times i feel fine. Ive been to the doctor and was tested for iron, b-12, thyroid problems and blood sugar. They also tested my hear which was beating fast and slow but i associated that with anxiety. I m desperate! Its not my eating habits because Ive tried experimenting with that