TASK DEFINITION: In this task you are given a medical question pair hand-generated. Your task is to classify a given post into two categories 1) 'Similar' if the given two questions have a same connotation 2) 'Dissimilar' if the given two questions have a different connotation or meaning.
PROBLEM: Sentence1: At times it stings/strikes me inside my head? Is it cause of sleep or cold or something else? 
 Sentence2: I have not been sleeping well for the past few days because of a cold. Can this cause a sharp striking/stinging pain in my head?

SOLUTION: Similar

PROBLEM: Sentence1: How can you tell the difference between hemmorhoids and colon cancer? Even though the symptoms are very similar, what are the major differences? 
 Sentence2: I have been noticing blood in my stools for the past 3-4 days. How can I tell if I have hemorhoids or colon cancer? 

SOLUTION: Similar

PROBLEM: Sentence1: I nearly have 3 days of incomplete rest. How can I stay in condition? 
 Sentence2: I sprained my ankle 2 days back and was not able to get enough rest. My pain level is at 7. Can this delay the recovery?

SOLUTION:
Dissimilar