Ok, so the first thing I need to say is that most people with Fibromyalgia may have different symptoms. This post details my struggle with it and how I cope. There is no cure or easy solution to the constant pain, stiffness and other symptoms, and it's undoubtedly not something that I would wish on anyone.
In some respects, I am quite lucky though, while I'm on a lot of pain meds and do walk with crutches, or need to use a wheelchair over longer distances. I can still walk with crutches, and the pain meds do help slightly, and I also only suffer from mild fibro-fog (yes, that is a real term).
Luckily the fibro-fog is something that is not a constant for me, so I can just stop writing, and come back later to finish and edit what I am working on as needed.
Stinging or burning is often caused by either having too much power going through an electrode or having your electrode too small. Other things can also create this sort of problem, and I will cover those later in this article.
Here are some pointers to bear in mind with different styles of electrode.