I was diagnosed with MG about 6 months ago. I'm still in the process of determining my proper dosage of Mestinon. My neuro told me to experiment, so here goes. One of my main symptoms has been an inability to walk any distance without having to sit down and rest a little before continuing. I had started using a wheelchair for shopping. Starting on 1/2 tablet 4 times a day helped my walking quite a bit. Now I am on 1tab, 1/2 tab, 1 tab, 1/2 tab each day. This helps even more. Two days ago I experimented and took 2 tablets at once. There was a BIG improvement in my symptoms. Not only could a walk a longer distance but I felt ENERGISED! I walked energetically! I walked so much that my calf muscles are still somewhat sore. I can understand how the Mestinon improves strength, but my question is do any of you also experience a surge of energy with the correct dosage?