5. INDIGESTION

When one experiences constant indigestion or difficulty in swallowing without explanation, this can also be a sign of stomach, esophageal, or throat cancer. Pancreatic cancer can also have these symptoms and oftentimes they manifest to higher degrees.

Dyspepsia or indigestion causes a painful, burning feeling in your chest, and most of the time this can give you an unpleasant or bitter taste in the mouth. So when tastes are acting weird and are followed by burning pain in the chest, you shouldn’t just ignore it or brush it aside.