Final answer:
Dehydration is the condition described in the question, characterized by water loss from the body without adequate replacement. Symptoms include extreme thirst, dry and flushed skin, postural hypotension, restlessness, confusion, and coma.
Step-by-step explanation:
The symptoms described in the question point towards a condition called dehydration. Dehydration is a result of water loss from the body without adequate replacement. Symptoms of dehydration include extreme thirst, dry and flushed skin, postural hypotension, restlessness, confusion, and coma.