I have focal weakness! My right eye, which was one of the issues that lead me to pursue what was wrong with me, blurs constantly and will only focus alone. I have also had the issue of my eyes shifting back and forth rapidly, like they are vibrating, making texting on my phone an issue. I can literally feel them bouncing back & forth and trying to focus, like a camera lens that can't find it's target. While I have very poor vision anyways and am severely myopic, this is very different and new. I also find I have more problems going near to far & back.

For my dx I had AChR binding first, but it was negative. Two months later a new dr ran that same test and it was positive. They also ran the modulating, blocking, MuSK, LEMS, and a calcium-channel voltage blocker (or something close to that). They did the nerve stimulation test, but it showed nothing. CT scan too, but I haven't heard those results yet. My doctor said, point blank, that he was dxing me based on "your physical exam, your AChR, and your story."