Barbara, None of us here, except Alice, are doctors. And you can't really get appropriate help on the Internet. You should be seeing a neurologist to figure out exactly what is going on.

When muscles get weak, they can cramp and spasm. So, yes, the back pain could've come from the MG. They can also throw off the spinal alignment, causing even more pain. What Nicky said about keeping the core muscles as strong as possible is correct. It is essential to keeping away "back" problems.

Since you do have cervical spondylosis too, you really need to see your neurologist for him/her to assess the situation. And if your MG is getting worse, you can have more back problems.

The thing with pain - or if it's muscles that are weak and spasming - is that it's better to get it taken care of right away. Otherwise it spirals into an even worse situation. These days I don't wait and it helps keep it from getting worse.

Annie