My condition seems to be independently quirky as well. Also, I have to take a break from meds once in awhile & just sleep. Seems the meds cause me to use up whatever it is that my brain has in short supply, & after awhile the meds seem to just not work.

I just had my dosage increased and on the days i am still exhausted it seems even worse taking it.

I was the opposite

I have been on Ritalin and changed to Adderall and i think Ritalin worked better

I've wondered this as well. Shouldn't they work the same every day?!?