Thanks Alice and Pat,

I take regular and timespan mestinon, I was taking the timespan because in the morning I was tripping over stuff (like my own two feet ) and I usually have it after dinner ~7 and I can hardly stay up past 8:30 anymore.

I agree Alice it's hard to know where that line is, and the darn thing seems to move on me all the time. I am glad to know that I'm not the only one who has a delayed but dramatic weakness, at first I was so worried that while exerting myself I would just keel over. But the Choking at night is worrisome for me...

Thanks for your input... it is much much appreciated