Given the task definition and input, reply with output. 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: 3wks postop GB removal.very nauseous, pain, and headache.getting an ultrasound tomorrow to check for fluids.could this be the cause?
Sentence2: My brother is experiencing nausea, headache and pain a month after his gall bladder was removed. I googled and read that some fluid collection around the operated site could cause similar symptoms. Is this true and will an ultrasound help detect it?
Similar