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: I just need to know if a low does antidepressant with Vyvanse (lisdexamfetamine) helps to not get the depression when you go off the Vyvanse (lisdexamfetamine) for weekends? 
 Sentence2: I feel like, I am depressed most of the time. May I know does my Vyvnase, which I am having for ADHD would help me or do I need to get some low dose antidepressant?

SOLUTION: Dissimilar

PROBLEM: Sentence1: How often should I get my custom  orthotics  evaluated and replaced & have Flat feet/ 1fallen arch. Advice  for 5K run/walker to avoid injury? 
 Sentence2: How frequent should I get my orthotics  for flat feet checked and replaced? What is the advice you can give me to avoid injury during a 5k run?

SOLUTION: Similar

PROBLEM: Sentence1: I'm on my period, and i had unprotected sex, and he came inside me. 2 days later, the bleeding from my period stopped. Is that a chance of pregnancy? 
 Sentence2: I had intercourse on the second day of my pregnancy and it as unprotected. After intercourse my bleeding stopped 3 days back. Is there any chance of pregnancy?

SOLUTION:
Similar