Has anyone experienced this? It is getting harder and harder for me to sleep at night. Even though I prop myself up in bed with several pillows (I am almost in sitting position), my breathing muscles do not seem to work right. It almost feels as if my lungs are going to sleep. I get a strange, dizzy sensation and then sometimes my breathing stops. It happens at night usually, but has started happening during the day too. I cannot lie on my back or on my left side. I also have muscle twitches throughout my body (especially torso), bilateral clonus, slightly upward moving big toe, and hyperreflexia. My lungs and chest have burning pain. I used to be able to run 3 miles, 3 times per week. Now I get winded just climbing the stairs. My 2005 pulmonary function test showed an FVC of 90% predicted value. My November 2009 pulmonary function test stowed an FVC of 68%. Laurie H.