Recently diagnosed with M. G. and am currently taking 60mg Mestinon 4-times a day -- 8:00 a.m. - 1:00 p.m. - 6:00 p.m. - 11:00 p.m. Most of the original symptoms have abated to the point that I can live a normal life. However, I still have a chronic head/neck instability problem that seems to be getting worse. Is anyone else experiencing this problem? If so, will it eventually go away with medication adjustments?