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: What would cause T3 (liothyronine) levels to be abnormal, but tsh/t4 are normal? I'm not pregnant.
Sentence2: What are some conditions that can cause abnormal levels of T3 but normal levels of T4 and TSH? Can pregnancy also cause it?

A: Similar
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Q: Sentence1: At times it stings/strikes me inside my head? Is it cause of sleep or cold or something else?
Sentence2: I have not been sleeping well for the past few days because of a cold. Can this cause a sharp striking/stinging pain in my head?

A: Similar
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Q: Sentence1: What to do if I'm 58 years old man.befoe 25 days I was found with widal positive but after 25 days widal test is negative..?
Sentence2: I'm a 58 yr old man and was found to have a WIDAL test positive about 25 days ago and now after 25 days it is negative. What can I do?

A:
Similar
****