Hi. I recently started mestinon. I was having generalized weakness, shortness of breath, double vision/very blurry vision and ptosis. I was at a point that brushing my teeth is difficult becuase of arm weakness. i have only been on it a week but feel better when I am taking it. not as much weakness and everyone comments on how much my eyes are open. My question is I wake up everymorning feeling like I have the flu. Achy, congested and really fatigued. It doesn't seem as bad once I start taking the Mestinon. Is this normal? Is it a side effect or maybe I just happen to have something on top of taking the mestinon. Has anyone else had this?