I start to yawn excessively (not necessarily tired) when I take concerta + coffee. Or sometimes just concerta alone.

The funny thing is, concerta works best for me when I am slightly tired (from lack of sleep). If I have a good 8 hours sleep, I would start to yawn non-stop after taking concerta (even without coffee).

Am absoltuely restless today. Took a pill just now, but I think it is just the anxiety (over deadlines being missed) that is keeping me on my toes. My brain is starting to feel numbbbbb.