when i first went on
Provigil, the difference was immediate
and made a huge difference, I could actually get up
and move. It might depend on how much you need it.
I suppose my body got used to it but I also have some different symptoms now, but it still works, just not like the miracle it was at first. But if I don't take it, I can really tell the difference.
I am so happy for you, fatigue is one of the worse syptoms in my opinion.