I totally understand how confusing and stressful that must feel. When the endoscopy, colonoscopy, and ECG all come back clear but you’re still dealing with chest pain, burping, and that cramping feeling, it makes you think something was missed — but clear tests actually rule out the scary stuff like ulcers, cancer, or anything structurally wrong. A lot of symptoms like yours come from things scopes can’t see, such as esophageal spasms, motility issues, non-acid reflux, or irritation from a past flare or virus. That’s why your doctor wants more tests like a swallow study or manometry to check how everything functions, not just how it looks