I have a diagnosis of CFS. It manifests mainly in recurring throat issues, flu-like symptoms, and exhaustion. I have had it for years. This last year or so all these new symptoms have crept in and I don't recognise them from the CFS. Lots of unexplained pain in my body - muscles, joints, burning sensation in my chest, ringing in my ears, IBS. I have just been attributing it to the CFS - thinking they are new symptoms. Which they might be. But I did wonder if something else could be going on. Would be interested to hear from anyone who has experience with either condition. My body is really confusing me at the moment!