I also am having issues with focus and irritability. I am recently diagnosed at age 56 and taking Vyvanse 50mg. I started at 20 mg and was having afternoon crashes that were horrible. Increasing the dose to 30mg didn’t help and I wanted to try something different, but my psychiatrist wanted to increase the dose one more time. On 50mg I’m more useless than I was before beginning meds. I don’t know what I’m doing half the time, even when I’m doing something familiar, like making coffee. I’ve never had so many issues trying to make a pot of coffee. I either forget the water, the coffee, or the pot. forgetting the pot is new since beginning the vyvanse. and forgetting water or adding the coffee is something that used to be an occasional thing and now it’s almost daily. I’ve cleaned coffee up off the floor 5 times in the last 3 weeks.
And now I’m afraid to try something else because I don’t think I can manage much longer. I am nearly to the point of quitting my job and locking myself in my room so I can’t screw anything else up.