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.
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Question: Sentence1: Late menstrual period after bad carwreck? 
 Sentence2: I am late for my period. Can I be pregnant?

Answer: Dissimilar


Question: Sentence1: If I have an astigmatism , could that be causing daily headaches? I do not wear glasses but i work on a p.C. All day and a lot of bright lighting. 
 Sentence2: What is the treatment for headaches caused by astigmatism?

Answer: Dissimilar


Question: Sentence1: Have water fluid on feet and legs pretty bad, already on water pills....Have a hard time sleeping and fine it hard to walk... Should I go to the er? 
 Sentence2: I have been to ER for leg and feet swelling and they prescribed water pills. But I am unable to sleep tonight, what can I do to get some relief from discomfrt due to swelling?

Answer:
Dissimilar