Muscle strain: Shortness of breath (sob) could be from many things such as asthma and infections like bronchitis and pneumonia. Infections could cause chest and back pain. Sob can go along with coughing. Coughing could lead to muscle strain which in turn can lead to chest and back pain.
Answered 12/15/2012
5.4k views
Emergency: It can be a heart attack in line with many other causes. Get evaluated immediately.
Answered 10/4/2016
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