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: Symmetrical legs & feet; numb, weak & tingly. Painful to walk @rest, both feet throb til they both go "numb". Is this due to my chronic back pain?
Sentence2: I have chronic back pain. Recently I started experiencing numbness, weakness and tingling sensation on both legs and feet, that hurt on walking. At rest, my legs and feet throb until numbness sets in. Is this due to my back ache?
Similar