Norepinephrine, as with other catecholamines, itself cannot cross the blood-brain barrier, so drugs such as. amphetamines are necessary to increase brain levels. Attention-deficit/hyperactivity disorder. Norepinephrine, along with dopamine, has come to be recognized as playing a large role in attention and focus.
This causes an imbalance of water in your body, leading to excessive urination and thirst. Dipsogenic diabetes insipidus: This condition is caused by a defect in the thirst mechanism, resulting in increased thirst and liquid intake. Heart, liver, or kidney failure.
Decreased appetite, Drinking excessive fluids, Fatigue and Increased thirst. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms decreased appetite, drinking excessive fluids, fatigue and increased thirst including Diabetes, type 2, Mononucleosis, and Depression (Adult).