In January 2019, my husband, Santiago, began experiencing mild stomach problems. He described it as a pulling sensation in his abdomen. He was 30 years old, very active and healthy. So, his primary care doctor assumed he had just strained a muscle. But by April, he was losing weight and unable to eat a full meal. When we went to a gastrointestinal doctor for a second opinion, they thought he maybe had a parasite, an ulcer or acid reflux...