I am also very sensitive to medication. I started mestinon at 60 Mg 4 times a day but now am taking 30 Mg 3 times a day. I have some minor stomach discomfort and cramping with loose stool. My main symptom of overdose is numbness and tingling of my lips and tongue.(weird, I know) Also if I take too much I feel weaker.

If I don't take my mestinon my face feels like it is sagging, my vision is bad and my body feels so heavy I can hardly move. I find the minor discomforts ar e worth it for how much better I feel. It takes time to figure out how it works best for you.

Hope you start feeling better soon. Welcome
Sandy