You should try anyway because it's better to know what it is.
When you are on them, there are a lot of changes to how you feel internally.
Pay attention to how you think about something intuitive like your stride on vs off of it. For me, I remember being less aware of where my legs and hands are. Kind of like having less data from all sensors, especially internal ones. This input is good for me because I have learned to watch it and stop before burnout.
Stimulants, if instant release need to be taken multiple times per day. I noticed when they stop working throughout the day and then had to take another (as prescribed.) It was hard to start a task unless it was right after I took a tablet. It was also hard to remember to take them and throwing off the schedule really destroys productivity.