I just started on medication to help with my ADHD, extended release Methylphenidate, anyone else have experience with these meds? I took them Tuesday, took Wednesday off because i did not have anything going on, and have taken them today. I have read many people experience side affects, So far i have not, do people usually experience the side affect the days they take the meds or the days they don’t? I did have a headache yesterday even though I did not take the meds. Not sure if it is related or not.