I think doctors confuse things, because they have never been in our shoes. Language is important, and too often we have to explain things in a way which fits the doctors "understanding".

In Dutch, there is no good word for ache, which is what I would have described my muscle feeling as, and it was only when I started describing it as "pijn" (pain) that they started to take notice.

And the ophthalmologist, kept referring to blurry vision, when I kept insisting that it was sharp, but double. It just didn't fit with what he had been taught.

Keep going and as Annie says use common sense and rest.