He can give no explanation.

He has no pain, no discomfort, no symptoms of any kind; in short, he feels perfectly well in every respect; but he is losing weight continuously.

What would you do ?" "I should overhaul him thoroughly," I answered.
"Why?
What would you expect to find ?" "I don't know that I should start by expecting to find anything in particular.

But I should overhaul him organ by organ and function by function, and if I could find nothing abnormal I should have to give it up." "Exactly," said Thorndyke.

"And that is just my position and my line of action.