Yes I do from chronic fatigue

I don't know what drugs you might be taking but it could be from some drug you are taking. Tramadol causes this problem for me so that's why I can't take it. And you probably already know that you can't take any kind of Nsaids like aspirin. I have also experienced this problem from an herb that they put in some brain supplements which I tried in the past. I forget the name of it right now but you need the name, let me know.

I also suffer from breathing issues

Yes, especially on days I have heavy fatigue.

Rarely do I suffer with breathing issues, but when I have had this problem it had nothing to do with my Fibro. However, a virus did cause me breathing issues.