Final answer:
The excerpt from Anton Chekhov's 'The Proposal' indicates that Lomov suffers from significant nervousness and anxiety, impacting his sleep and physical health.
Step-by-step explanation:
The excerpt from Anton Chekhov's The Proposal reveals that Lomov is a man who suffers from a considerable amount of nervousness and anxiety. He experiences palpitations, twitching, and sleep disturbances characterized by sudden pulls that prevent him from sleeping peacefully. These symptoms, especially the sleep issues that occur 'twenty times' convey his heightened anxious state, suggesting that small worries and stress profoundly affect his physical wellbeing.