Welcome to the best MG support site on the internet. I have had MG over 18 years now and I can say when I was on Mestinon I felt the same way as you. Have you had a thymectomy yet? I had one and did not have a thynoma but I did go into remission for many years. I am now out of remission but I don't take any meds as the side effects cause my MG to worsen. As for crowds or shopping or anything I have to focus on I get double vision and dizzy sadly I guess thats just something we have to learn to live with when we have MG. I find that tilting my head helps with the vision. As for the sweating, that is indeed the mestinon. I hope you feel better soon and know that you have many who understand you here. Feel free to ask anything.