Stephanie, how do you sit or lay down? When I am having difficulty breathing (I am a mostly Bulbar MGer who is also asthmatic), I breathe easier when I lay on my left side -- I also tend to sit angled this way in my recliner when I am in exacerbation. Sometimes, I even lean FORWARD (in a sitting position) to catch my breath. Laying on your back makes it VERY difficult for your lungs to work (in an MG body) -- you are pushing AGAINST gravity.

I tend to have the chest pains when I am in exacerbation -- I've had ekgs and worn a Holter monitor -- all came back "normal". If all else checks out (DO get this checked out completely!!!), you may learn that this is just part of the "MG package" -- especially during an exacerbation or time of stress. You DO sound stressed right now -- WITH good reason.

Take care!!