Hi Alan,
nice to meet you.
My eyelids get heavy and then sometimes I will then get unilateral or bilateral ptosis. I can even wake up with it. I can only describe it as like your eyebrows are having a race to see which one can reach your chin first!
I find when its that bad the only thing to do is apply ice to the eyebrows, this works very quickly for me. I know Erin has said before that even a cool can of coca cola can do it.
I can't help with the double vision, although I suffer with it myself normally towards the end of the day.
I hope this helps
Rach