Overfeeding is the number-one cause of high nitrate levels in aquariums. Overfed fish produce much more waste than normal, and when more food is given than they can take in, the uneaten food rots and produces even more wastes. Keeping too many fish in a tank also leads to problems with accumulated wastes.
Symptoms Caused By Esophageal Ulcer. One classic symptom is a dull or burning pain. It is common with all forms of peptic ulcers. The affected person may feel the pain radiating within the areas starting from the navel up to the breastbone.
When you have an esophageal ulcer, you need to follow a low-fat diet. Fat in food delays stomach emptying and decreases pressure in the lower esophageal sphincter, or LES, which is the valve that separates your stomach and your esophagus. Both of these issues increase the risk of acid reflux and esophageal irritation.