Hi, KellyAnn - I am a new poster - but not new to MG.

Well, speaking from experience - one of my first symptoms - along with leg weakness, and upper torso muscle weakness (weak proximal muscles) (resulting in poor lower back support) = was severe (at times) lower back muscle pain !

I found it perplexing that when I stood for sometimes a short time, sometimes a long time - that I suffered from such severe lower muscular back pain. I would sit or lay down, relax my muscles, and eventually, the pain would subside. I remember thinking that I was glad I had a job that I could "sit down" at !

After the MG was diagnosed, I discusse this with my neuro - and he agreed that this made sense!

My neuro says he has seen the same pain (syndrome) from MG that I have - with a couple of other patients that he has.

Often now, my neck muscles become so weak that it causes strain and eventual pain in my neck muscles. Hence, I have "adapted" and started to use a chair at work and at home that has neck support.

I even have occasional stomach "spasms" - feels like a charlie horse in my mid abdomen - that my nuero and internal med doctors (after ruling out other issues) have attributed to weak abdominal muscles (which are again, proximal muscles.

I think I am very lucky that my neuro did not made the "black and white statement" that MG does not cause pain. I have read this before. It does - or can - (at least in my experience).