Hi thereI do'nt think you need to be too scared about this particualr symptom. Certainly it has nothgin directly to do with BFS or anything neurological at all for that matter. Hpwever, it may well be related to your BFS via the anxiety you are experiencing. I would think having a doctor listen to your chest and arrange any simple tests that may be needed would be a really good way to put your mind at rest. I can't imagine that the 'worst case scenario' is very bad at all - even if the doc did find a problem it'd probably be nothing more concerning that something like asthma etc. All such problems are treateable. However, I am optmiistic for you that the doc will find that there is no medical problem at all.All the bestSimon