My vyvanse helps me concentrate on napping as dumb as that sounds. But i quite often take 50 mg and go for a nap after it kicks. Problem is after the nap its like the vyvanse just isnt there
If you are being treated for Narcolepsy its could be too low. If you have ADHD, there are more important factors then taking a nap. In fact, I think that the ability to take a nap would show that it is working for you.
I do hope that you are upping your dose under your doctors supervision. The doc does need to know what is going on. Furthermore, the dose should probably be upped only after your body has had time to adjust. In other words, you don't up it every 4 days or something.