tduncansic is right...it possibly could be trigger points! I hadn't thought about those; mine are more like hard knots, and they are in my neck, shoulders, arms, lower back, and legs. But gosh knows, although we all have many similarities in our medical problems, we also have many differences, so we're obviously going to have variations in how trigger points look, feel, and where they're located.
I go to a massage therapist who specializes in myofascial massage therapy. My insurance used to cover it, but not now (something that truly helps and they quit covering it...go figure). Anyhow, because of her training, she's very much aware of them; she knows how to find them, and she's able to press directly in on them, massage them, & break them up. It hurts, but it's the kind of hurt that actually hurts in a good way. She also stresses that you drink lots of water afterwards, because she says breaking them up releases toxins, and you need to flush them out of your body. It does help...maybe it would help you. Massage therapy would probably help in general. It does relax the muscles and eases the tenderness, for a bit anyway. Your insurance might even cover it...you never know.

At one time my ra dr sent me to a pool therapist. While we were in pretty hot pool water, she would massage all these knots out. She would just press hard & rub. I felt a lot better after she was through. They are knotted up muscles......hope this helps....

You know, you may be on to something with EBV. Epstein-Barr Virus is a latent infection that can remain dormant for years. I found out I had it in 2007 when I was being tested for lyme disease and the EBV was flaring big time then, along with Cytomegalovirus (CMV) and herpes simplex virus (HSV). I've been under a lot of stress since January, and I bet these viruses are flaring now. I usually take l-lysine to control the HSV, but haven't taken in a few months. I've also been trying to lose weight and am drinking smoothies with protein powder mix in and some of these powders have l-arginine, which suppresses l-lysine.

So, thank you very much for reminding me about the EBV! It is amazing what a person is able put out of our memory to survive.

My physiotherapist says they are the trigger points in my muscles..

Did you ever get any relief ajho?