After 4 weeks, I was diagnosed with an acute
pulmonary thrombo-
embolism. I did not have the typical symptoms, but pain started after I breathed in 'CS' gas during an accidental discharge. I also had pertussis earlier in the year. My pain always started btw the scapulas, and as my respiration increased from very mild exercise, the pain radiated across my scapulas, to my chest, down my arms to my elbows, and across my lower jaw. I never had problems breathing; only the pain.