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.

Sentence1: I have being getting headaches for about 2 weeks, feeling really tired and fainted once which never happened before and loss of  appetite. what's wrong? 
 Sentence2: What conditions can cause headaches, dizziness and loss of consciousness?
Similar

Sentence1: I very often have dull pain in the lower left abdomen. Although bearable, should I still be concerned due to its frequent occurance and see a doctor? 
 Sentence2: I noticed a dull pain in the left lower abdomen and has been recurrent, notice it often. It has been bearable but I'm concerned if I should see a doctor about it?
Similar

Sentence1: Are there any side effects I should worry about if I have my 9 year old son use Milk of Magnesia (magnesium hydroxide) as a deodorant? 
 Sentence2: I read a lot about Milk of magnesia deodorants. Do they help with perspiration effectively?

Dissimilar