instruction:
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.
question:
Sentence1: On the top right side of my head, I have this random pulsing feeling? Like someone is tapping their finger on this one small spot. It's not painful. 
 Sentence2: What causes a pulsatile feeling on the right side of the forehead?
answer:
Similar


question:
Sentence1: Whenever I sit continous for a long time then I get numbness tingling in my arms legs and stifness tightness in head or face. Plz please tell what to do? 
 Sentence2: I have numbness and tingling in arms, legs, stiffness, tightness in head or face. This happens when I sit for long. Asking what to do?
answer:
Similar


question:
Sentence1: Is it necessary to get the h1n1 or h5n1 flu shot? 
 Sentence2: I have a fever and severe headache after I got the H1N1 flu shot. Will a Paracetamol help with the fever?
answer:

Dissimilar