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.

Q: 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?

A: Similar
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Q: Sentence1: What to do if I have some symptoms thought that i don't know if they could be PMS or pregnancy ? 
 Sentence2: How can I differentiate between PMS and pregnancy symptoms?

A: Similar
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Q: Sentence1: I'm 48 years old and I dont have frequent erections but I do take blood pressure meds plus cialis is there any help for me or is it all in my head? 
 Sentence2: I am 48 years old and I want to know what can help me because I have erectile dysfunction? I am on blood pressure medication and Cialis already. 

A:
Similar
****