1) Disorder 2) Upset 
Achlorhydria ə or hypochlorhydria refers to states where the production of gastric acid in the stomach is absent or low, respectively. It is associated with various other medical problems. ==Signs and symptoms== Irrespective of the cause, achlorhydria can result as known complications of bacterial overgrowth and intestinal metaplasia and symptoms...
A lack of hydrochloric acid in the digestive juices in the stomach. Hydrochloric acid helps digest food.
<gastroenterology> The absence of hydrochloric acid from the gastric juice. ... (27 Sep 1997) ... 
(a″klor-hi´dre-ә) absence of hydrochloric acid from gastric juice; associated with pernicious anemia, stomach cancer, and pellagra. adj., achlorhy´dric., adj.
Type: Term Pronunciation: ā-klōr-hī′drē-ă Definitions: 1. Absence of hydrochloric acid from the gastric juice.
Achlorhydria: A lack of hydrochloric acid in the digestive juices in the stomach (in technical terms, so that the pH of the stomach contents fails to fall below 4.0 under maximal stimulation). Hydrochloric acid helps digest food. Achlorhydria can be due to many diverse causes including: Pernicious anemia -- an autoimmune gastritis. Other autoimmune...
Achlorhydria is a lack of hydrochloric acid in the stomach juice.
The lack of free hydrochloric acid in the stomach; more broadly, inadequate or suppressed secretions.
[n] - an abnormal deficiency or absence of free hydrochloric acid in the gastric juice
noun an abnormal deficiency or absence of free hydrochloric acid in the gastric juice; often associated with severe anemias and cancer of the stomach