Answer:Diabetes Insipidus
Explanation:
Following the signs and symptoms presented, diabetes Insipidus is caused by hyposecretion of anti-diuretic hormone due to damage of the hypothalamus.
When this happens,the renal tubules of the kidney fail to respond to anti-diuretic hormone and water reabsorption by the tubules is impaired.leading to the release of excess amounts of of dilute urine cause low blood blood pressure, dehydration and extreme thirst.
Water balance will maintain a disturbed state unless copious fluid intake is employed to compensate for excess loss.